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Expression data from WIF1 induced LN-229 (GBM cell line)

ABSTRACT: Glioblastoma is the most aggressive primary brain tumor in adults and due to the invasive nature it cannot be completely removed. We have recently shown that the WNT inhibitory factor 1 (WIF1), a secreted inhibitor of WNTs, is downregulated in glioblastoma and acts as strong tumor suppressor. In search of a mediator for this function differential gene expression profiles of WIF1-expressing cells were performed. MALAT1, a long non-coding RNA and key positive regulator of invasion, emerged as the top downregulated gene. Indeed, knock-down of MALAT1 reduced migration in glioblastoma cells, without effect on proliferation.

ORGANISM(S): Homo sapiens

PROVIDER: GSE58525 | GEO | 2015/02/23

SECONDARY ACCESSION(S): PRJNA252828

REPOSITORIES: GEO

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Expression data from WIF1 induced LN-229 (GBM cell line)

Project description:Glioblastoma is the most aggressive primary brain tumor in adults and due to the invasive nature it cannot be completely removed. We have recently shown that the WNT inhibitory factor 1 (WIF1), a secreted inhibitor of WNTs, is downregulated in glioblastoma and acts as strong tumor suppressor. In search of a mediator for this function differential gene expression profiles of WIF1-expressing cells were performed. MALAT1, a long non-coding RNA and key positive regulator of invasion, emerged as the top downregulated gene. Indeed, knock-down of MALAT1 reduced migration in glioblastoma cells, without effect on proliferation. LN-229 cells induced with Doxocyclin to express WIF1 were compared to the non-induced control (two biological replicates each)

2015-02-23 | E-GEOD-58525 | biostudies-arrayexpress

Expression data from WIF1 induced LN-229 (GBM cell line)

Project description: Not available

| S-ECPF-GEOD-58525 | biostudies-other

Identification of JMJD1C target genes in LN-229 glioblastoma cells.

Project description:JMJD1C shows ubiquitous expression and is often downregulated in tumor entities compared to healthy tissues.JMJD1C inhibit growth of the glioblastoma cell line LN-229. Here, JMJD1C knockdown leads to malignant progression in the glioblastoma cell line LN-229.

2021-02-09 | GSE166351 | GEO

Smad1 and its target gene Wif1 coordinate BMP and Wnt signaling activities to regulate lung development

Project description:Bone morphogenetic protein 4 (BMP4) is essential for lung development. To define its intracellular signaling mechanisms by which BMP4 regulates lung development, BMP-specific Smad1 or Smad5 was selectively knocked out in fetal mouse lung epithelial cells. Abrogation of lung epithelial-specific Smad1, but not Smad5, resulted in retardation of lung branching morphogenesis and reduced sacculation, accompanied by altered distal lung epithelial cell proliferation and differentiation, and consequently severe neonatal respiratory failure. By combining cDNA microarray with ChIP-chip analyses, Wnt inhibitory factor-1 (Wif1) was identified as a novel target gene of Smad1 in the developing mouse lung epithelial cells. Loss of Smad1 transcriptional activation of Wif1 expression was associated with reduced Wif1 expression and increased Wnt/beta-catenin signaling activity in lung epithelia, resulting in specific fetal lung abnormalities. Therefore, a novel regulatory loop of BMP4-Smad1-Wif1-Wnt/beta-catenin in coordinating BMP and Wnt pathways to control fetal lung development is suggested.

2011-01-07 | GSE26502 | GEO

Wnt inhibitory factor 1 (WIF1) is a marker of osteoblastic differentiation stage and is not silenced by DNA methylation in osteosarcoma (methylation)

Project description:Therapeutic targeting of the Wnt pathway is of high clinical interest for treating bone loss disorders such as osteoporosis. These therapies inhibit the action of negative regulators of osteoblastic Wnt signaling. The observation that Wnt inhibitory factor 1 (WNT1) was epigenetic silencing in osteosarcoma (OS) raised concerns for such a treatment approach. In this study, genome-wide methylation profiling of OS derived from mouse models demonstrated Wif1 silencing in OS is not driven by DNA methylation. Treatment of mouse and human OS cells with methylation and HDAC inhibitors showed Wif1 was unresponsive to methylation inhibition but responded robustly to HDAC inhibition. Consistent with an HDAC dependent mechanism of silencing, the Wif1 locus in OS was characterized by low levels of acetylation and a bivalent H3K4/H3K27 trimethylation state. Wif1 expression marked late stages of normal osteoblast development and stratified OS tumours based on differentiation stage across species. Culture of human and mouse OS cells under differentiation inductive conditions increased expression of Wif1 in parallel with known osteoblast differentiation markers. Together these results demonstrate that Wif1 is not targeted for silencing by DNA methylation in OS. The reduced expression of Wif1 in OS cells is in context with their stage in differentiation.

2015-07-01 | GSE47571 | GEO

Smad1 and its target gene Wif1 coordinate BMP and Wnt signaling activities to regulate lung development

2011-01-07 | E-GEOD-26502 | biostudies-arrayexpress

UCSD GBM Data Set

Project description:Total RNA microarray data from Fresh-Frozen Glioblastoma tumor samples. Untreated, newly diagnosed patients.

2014-08-08 | E-GEOD-60184 | biostudies-arrayexpress

Wnt inhibitory factor 1 (WIF1) is a marker of osteoblastic differentiation stage and is not silenced by DNA methylation in osteosarcoma (methylation)

2015-07-01 | E-GEOD-47571 | biostudies-arrayexpress

UCSD GBM Data Set

Project description:Total RNA microarray data from Fresh-Frozen Glioblastoma tumor samples.

2014-08-08 | GSE60184 | GEO

Hypoxia and dimethyloxalylglycine (DMOG) downregulates tryptophan-2,3-dioxygenase (TDO2) expression in GBM cells

Project description:The tryptophan degrading enzyme TDO2 is downregulated upon HIF1alpha stabilization by exposure to both hypoxia as well as chemical hypoxia mimetics such as DMOG in glioblastoma cell line A172.

2019-12-29 | GSE138535 | GEO

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