Fumarate hydratase (FH) mutations predispose to renal cysts cancer. These cancers overexpress hypoxia-inducible factor-alpha (Hif-1a). We have generated a conditional Fh1 (mouse FH) knockout mice that develop renal cysts and overexpress Hif-1a. In order to identify the contribution of Hif-1a to cyst formation we have intercrossed our mice with conditional HIf-1a KO mice.
Renal cyst formation in Fh1-deficient mice is independent of the Hif/Phd pathway: roles for fumarate in KEAP1 succination and Nrf2 signaling.
Age
View SamplesGene expression profiles of normal kidney (3 technical replicates) and a renal tumor (3 technical replicates) from a hereditary leiomyomatosis and renal cell cancer (HLRCC) patient carrying a germline mutation in the fumarate hydratase (FH) gene.
Expression profiling in progressive stages of fumarate-hydratase deficiency: the contribution of metabolic changes to tumorigenesis.
Specimen part
View SamplesWe observed that mutations in CBP60a, CML46, CML47 and WRKY70 enhanced plant resistance to Pma likely through different mechanisms. To investigate their contributions to enhanced resistance at the transcriptome level, we designed this experiment to measure their response to Pma using the SMART-3Seq method. Overall design: Mature leaves of Arabidopsis plants of seven different genotypes were infiltrated with mock or Pma. Samples were collected 24 hours after treatment. Each experiment contains one sample consisted of two leaves for each genotype-treatment combination. In total three independent experiments were conducted.
WRKY70 prevents axenic activation of plant immunity by direct repression of SARD1.
Treatment, Subject
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Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity.
Age, Specimen part, Treatment
View SamplesAnalysis of brown adipose tissue from Yin Yang 1 (YY1) brown fat specific knockout mice fed a high fat diet for 3 months. YY1 deficiency in brown adipose tissue leads to strong thermogenic deficiency. The goal was to identify the genes controlled by YY1 responsible of brown fat defective function.
Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity.
Age, Specimen part, Treatment
View SamplesAnalysis of visceral white adipose tissue (EWAT) from Yin Yang 1 adipose-specific knockout mice exposed to cold (4C) for 4 days.
Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity.
Age, Specimen part, Treatment
View SamplesAnalysis of subcutaneous adipose tissue (IWAT) from Yin Yang 1 brown fat specific knockout mice fed a high fat diet for 2 weeks. The goal was to identify a gene signature of IWAT browning in YY1 mutant mice.
Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity.
Age, Specimen part, Treatment
View SamplesInjuries to the anterior cruciate ligament (ACL) often result in post-traumatic osteoarthritis (PTOA). PTOA accounts for ~12% of all osteoarthritis (OA) cases, yet the mechanisms contributing to OA after joint injury are not well understood. To better understand the molecular mechanisms behind PTOA development following ACL injury, we profiled ACL injury-induced gene expression changes in knee joints of three mouse strains with varying susceptibility to PTOA: STR/ort (highly susceptible), C57BL/6 (moderately susceptible) and super-healer MRL/MpJ (not susceptible) and identified genes differentially expressed between these strains at 0-day [before injury], 1-day, 1-week, and 2-weeks post-injury. This study highlights many new potential therapeutic targets and OA biomarkers. Overall design: Comparative transcriptomics to understand the molecular changes associated with early stages of PTOA development in STR/ort, C57BL/6 and MRL/MpJ mice and to identify genes that contribute to increased OA susceptibility in STR/ort and resistance to PTOA in MRL/MpJ.
Comparative Transcriptomics Identifies Novel Genes and Pathways Involved in Post-Traumatic Osteoarthritis Development and Progression.
Age, Specimen part, Cell line, Treatment, Subject
View SamplesAffymetrix gene expression data of 21 high-grade osteosarcomas located in the extremities.This gene expression profiling was performed in order to evaluate the expression of candidate prognostic and therapeutic targets in high-grade osteosarcoma.
Targeting CDKs with Roscovitine Increases Sensitivity to DNA Damaging Drugs of Human Osteosarcoma Cells.
Age, Specimen part
View SamplesThe canonical Wnt pathway plays a central role in stem cell maintenance, differentiation and proliferation in the intestinal epithelium. Constitutive, aberrant activity of the TCF4/ß-catenin transcriptional complex is the primary transforming factor in colorectal cancer. Despite significant recent inroads, the full complement of Wnt target genes and the mechanisms of regulation remain incompletely understood. Here we identify a nuclear long non-coding RNA, termed WiNTRLINC1, as a direct target of TCF4/ß-catenin in colorectal cancer cells. WiNTRLINC1 positively regulates the expression of its close neighbor ASCL2, a transcription factor that controls intestinal stem cell fate. WiNTRLINC1 interacts with TCF4/ß-catenin to mediate the juxtaposition/physical contact of its own promoter with the regulatory regions of ASCL2. ASCL2, in turn, regulates WiNTRLINC1 expression. This feedforward regulatory loop controls stem cell-related gene expression and is highly amplified in colorectal cancer. Overall design: Derivatives of Ls174T colon cancer cells, overexpressing the Tet repressor were used for the construction of inducible overexpressing a shRNA against the WiNTRLINC1 long non coding RNA upon treatment with doxyxycline. siRNAs against WiNTRLINC1 were designed with the siDesign center tool from Dharmacon and their sequences were used for the construction of the shRNA stem loop structure as described in EMBO Rep. 2003 Jun;4(6):609-15. The modified pTER vector was used as a backbone for constructing the shRNA cassette as described in EMBO Rep. 2003 Jun;4(6):609-15. Positive cell clones were screened with RT-PCR in order to validate the efficiency of the knockdown of WiNTRLINC1. The Ls174T derivative cell line inducibly overexpressing a shRNA against ASCL2 has been described previously in Cell. 2009 Mar 6;136(5):903-12. RNA deep sequencing was performed in the WiNTRLINC1 KD and ASCL2 KD cells compared to controls cells in order to detect changes in gene expression due to the loss of either WiNTRLINC1 or ASCL2.
A Positive Regulatory Loop between a Wnt-Regulated Non-coding RNA and ASCL2 Controls Intestinal Stem Cell Fate.
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