To understand the effects of glutamine deprivation on cell physiology we performed global analysis of gene expression in response to glutamine deprivation.
Glutamine deprivation stimulates mTOR-JNK-dependent chemokine secretion.
Cell line
View SamplesLow back pain (LBP) is one of the most prevalent conditions which need medical advice and result in chronic disabilities. Degenerative disc disease (DDD) is a common reason for LBP. A lot of researchers think that CEP degeneration play critical roles in the initiation and development of DDD. In recent years, researchers have put interests on cell-based therapies for regenerating disc structure and function. Our research team has isolated cartilage endplate-derived stem cells (CESCs) and validated their chondrogenic and osteogenic differentiation ability. Enhanced chondrogenic differentiation and inhibited osteogenic differentiation of CESCs may retard CEP calcification and restore the nutrition supply, possibly regenerating the degenerated discs.
Global Gene Expression Profiling and Alternative Splicing Events during the Chondrogenic Differentiation of Human Cartilage Endplate-Derived Stem Cells.
Specimen part
View SamplesHere we show that biotin-labelled miR-34a can be loaded to AGO2, and AGO2 immunoprecipitation can pulldown biotinylated miR-34a (Bio-miR pulldown). RNA-sequencing (RNA-seq) of the Bio-miR pulldown RNAs efficiently identified miR-34a mRNA targets, which could be verified with luciferase assays. In contrast to the approach of Bio-miR pulldown, RNA-seq of miR-34a overexpression samples had limited value in identifying direct targets of miR-34a. It seems that pulldown of 30 -Biotin-tagged miRNA can identify bona fide microRNA targets at least for miR34a. Overall design: biotin-labelled miR-34a pulldown and RNA sequencing of miR-34a overexpression samples
Comparing two approaches of miR-34a target identification, biotinylated-miRNA pulldown vs miRNA overexpression.
Cell line, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
PrtT-regulated proteins secreted by Aspergillus fumigatus activate MAPK signaling in exposed A549 lung cells leading to necrotic cell death.
Specimen part, Cell line, Treatment
View SamplesResponse of A549 cells treated with Aspergillus fumigatus wild type germinating conidia (WT_GC) or PrtT protease deficient mutant conidia (PrtT-GC) or inert acrylic 2-4 micron beads (Beads) for 8h
PrtT-regulated proteins secreted by Aspergillus fumigatus activate MAPK signaling in exposed A549 lung cells leading to necrotic cell death.
Specimen part, Cell line, Treatment
View SamplesResponse of A549 cells treated with Aspergillus fumigatus wild type culture filtrate (WT-CF) or PrtT protease deficient mutant culture filtrate (PrtT-CF) for 8h
PrtT-regulated proteins secreted by Aspergillus fumigatus activate MAPK signaling in exposed A549 lung cells leading to necrotic cell death.
Specimen part, Cell line, Treatment
View SamplesResponse of A549 cells treated with Aspergillus fumigatus germinating conidia (WT-GC) or culture filtrate (WT-CF) for 8h
PrtT-regulated proteins secreted by Aspergillus fumigatus activate MAPK signaling in exposed A549 lung cells leading to necrotic cell death.
Specimen part, Cell line, Treatment
View SamplesMicroarrays were used to examine gene expression changes that may be present in the fallopian tube epithelium of morphologically normal BRCA1 mutation positive and negative subjects. Fallopian tube epithelia has been implicated as an early point of origin for serous carcninoma. By examining the early events present in the microenvironment of this tissue between BRCA1 mutation carriers and non-carriers, we hoped to elucidate mechanisms that may lead to the development of epithelial ovarian cancer.
Identification of abrogated pathways in fallopian tube epithelium from BRCA1 mutation carriers.
Specimen part
View SamplesIntravaginal HIV microbicides could provide women with a self-controlled means for HIV prevention, but results from clinical trials have been largely disappointing. We postulated that unrecognized effects of intravaginal gels on the upper female reproductive tract (FRT) might contribute to the lower-than-expected efficacy of HIV microbicides. In this observational crossover study, 28 healthy female volunteers used no product (control cycle) or used a nightly application of intravaginal nonoxynol-9 gel [N9] as a 'failed' microbicide or the universal placebo gel [UPG] as a 'safe' gel, from the end of menses to the mid-luteal phase (intervention cycles). They then underwent sample collection for measurements of T-cell phenotypes, transcriptional profiling, and protein levels from 3 anatomic sites above the vagina: the cervical transformation zone, the endocervix and the endometrium. We used hierarchical statistical models to estimate mean (95% CI) intervention:control fold-changes in relevant phenotype levels. Exposure to N9 and UPG generated a common 'harm signature' that included transcriptional up-regulation of inflammatory genes CCL20 and IL8 in the cervix, decreased protein concentrations of secretory leukocyte protease inhibitor and increased percentages of terminally differentiated CD4+ effector T-cells in the endocervix, and transcriptional up-regulation of inflammatory mediators KIR3DS1, glycodelin-A, and osteopontin in the endometrium. These results underscore the need to consider the effects of microbicide agents and gel excipients on the upper FRT in studies of vaginal microbicides. Given the pro-inflammatory effects of UPG on the upper FRT, it may not be a suitable placebo for microbicide trials.
Unexpected Inflammatory Effects of Intravaginal Gels (Universal Placebo Gel and Nonoxynol-9) on the Upper Female Reproductive Tract: A Randomized Crossover Study.
No sample metadata fields
View SamplesIn order to properly understand whether xenoestrogens act as estrogens, it is essential to possess a solid portrait of the physiological effects of exogenous estradiol. Because the estrogen-dependent gene expression is one of the primary biomarkers of estrogenic action, we have assessed effects of three doses of exogenous estradiol (0.1, 1.0 and 10 g/kg of body weight/day) on the mammary gland morphology and gene expression profiles by microarray analysis of prepubertal male and female rats of both sexes compared to untreated controls. Estradiol was administered subcutaneously with minipumps from weaning at PND21 to the end of the experiment at PND33. The data suggest that the male mammary is a sensitive tissue for estrogenicity assessment.
Mammary gland morphology and gene expression signature of weanling male and female rats following exposure to exogenous estradiol.
Sex
View Samples