Overexpression of human progastrin (hGAS) in mice has been observed to increase colonic mucosa proliferation significantly,
Progastrin stimulates colonic cell proliferation via CCK2R- and β-arrestin-dependent suppression of BMP2.
Sex, Age, Specimen part
View SamplesChanges in gene expression on MNV infection of RAW264.7 cells
Murine norovirus replication induces G0/G1 cell cycle arrest in asynchronously growing cells.
Cell line
View SamplesHypothalamic hamartomas (HHs) are congenital lesions of the neuroendocrine brain composed of neurons and astroglia. Frequently, HHs are associated with central precocious puberty (CPP) and/or gelastic seizures. Because HHs might express genes similar to those required for the initiation of normal puberty we used cDNA arrays to compare the gene expression profile of a HH associated with CPP with three HHs not accompanied by sexual precocity. Our aim was to identify genes whose expression may be selectively altered in the HH with CPP and hence, involved in the onset of puberty.
Gene expression profiling of hypothalamic hamartomas: a search for genes associated with central precocious puberty.
No sample metadata fields
View SamplesThe gene expression of murine splenic myeloid derived suppressor cells treated with Tff2 is characterized. The motivation of the study originates in the fact that Gr1+Cd11b+ myeloid-derived suppressor cells (MDSCs), which resemble immature myeloid cells (IMCs), expand during cancer in response to inflammatory cytokines and accumulate in the spleen. MDSCs promote neoplastic progression through their suppression of anti-tumourigenic cytotoxic T-cells. MDSCs are also rapidly expanded following acute insults, but in cancer as opposed to acute inflammation, MDSCs persist. It is now recognized that a vagally-mediated, anti-inflammatory reflex arc promoting acetylcholine secretion by Cd4+ (Cd44hiSelllo) T cells, is necessary for a return to homeostasis after an acute insult. Failure of this restorative neural circuit might contribute to unabated procarcinogenic inflammation, with the chronic expansion of MDSCs driving carcinogenesis. Trefoil factor 2 (Tff2) is a secreted anti-inflammatory peptide produced by both epithelial cells and a small subset of splenic T cell.
Neural innervation stimulates splenic TFF2 to arrest myeloid cell expansion and cancer.
Sex, Age, Specimen part
View SamplesRecent studies demonstrated that tumor cells with stem cell-like properties can be cultured from human glioblastomas by using conditions that select for the expansion of neural stem cells. We established glioblastoma stem-like (GS-) cell cultures from 9 different glioblastomas, 8 of which generated stably expandable cell lines. Analyzing GS-cell cultures, we discovered two clearly discernable phenotypes.
Glioblastoma-derived stem cell-enriched cultures form distinct subgroups according to molecular and phenotypic criteria.
No sample metadata fields
View SamplesWe compared a large panel of human glioblastoma stem-like (GS) cell lines, corresponding primary tumors and conventional glioma cell lines to identify cell lines that preserve the transcriptome of human glioblastomas most closely, thereby allowing identification of shared therapeutic targets.
A distinct subset of glioma cell lines with stem cell-like properties reflects the transcriptional phenotype of glioblastomas and overexpresses CXCR4 as therapeutic target.
No sample metadata fields
View Samples7-dehydrocholesterol reductase catalyzes the reduction of 7-dehydrocholesterol to cholesterol. In Smith-Lemli-Opitz syndrome, mutations in DHCR7 prevents this conversion. We have found iPS cells derived from SLOS patients exhibit accelerated differentiation under cholesterol poor conditions.
Modeling Smith-Lemli-Opitz syndrome with induced pluripotent stem cells reveals a causal role for Wnt/β-catenin defects in neuronal cholesterol synthesis phenotypes.
Specimen part, Cell line, Time
View SamplesDclk1 (Doublecortin like kinase-1) labels a rare population of long-lived and largely quiescent cells in the adult mouse pancreas. The expression of Dclk1+ vs Dclk1- pancreatic cells (mostly acinar) is observed. Overall design: Dclk1+ vs Dclk1-
Dclk1 Defines Quiescent Pancreatic Progenitors that Promote Injury-Induced Regeneration and Tumorigenesis.
Specimen part, Cell line, Subject
View SamplesAblation of the Camk4 gene in dopaminoceptive neurons of the brain was performed using the Cre/loxP system, with the recombinase expressed from a BAC-derived Drd1a promoter.
Loss of the Ca2+/calmodulin-dependent protein kinase type IV in dopaminoceptive neurons enhances behavioral effects of cocaine.
No sample metadata fields
View SamplesDifferential expression of Hdc-GFPhi HSPC VS Hdc-GFPlo HSPC hematopoetic stem and progenitor cells from mouse bone marrow Overall design: Bone marrow Hdc-GFPhi and Hdc-GFPlo HSPC (LSK, Lin-c-kit+Sca-1+) hematopoetic stem and progenitor cells were isolated from femur, tibia, illium, and vertebra bones of histidine decarboxylase (Hdc) green fluorescent protein (Hdc-GFP) mice Hdc-GFPhi HSPC and Hdc-GFPlo HSPC cells were sorted by combinations of GFP and the cell surface markers of LSK, total RNA was isolated from sorted 2,000 HSPCs using ARCTURUS PicoPure RNA isolation kit (Life Technologies). cDNA was amplified and libraries were constructed by using the SMARTer Ultra Low Input RNA kit (Clontech Laboratories) and the Nextera XT DNA Library Preparation kit (Illumina) according to the respective manufacturer's instructions. Sequencing was performed on the Illumina HiSeq 2500 platform. a. Hdc-GFPhi bone marrow HSPC cells (n=4) b. Hdc-GFPlo bone marrow HSPC cells (n=4)
Bone Marrow Myeloid Cells Regulate Myeloid-Biased Hematopoietic Stem Cells via a Histamine-Dependent Feedback Loop.
Specimen part, Cell line, Subject
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