This SuperSeries is composed of the SubSeries listed below.
XBP1 promotes triple-negative breast cancer by controlling the HIF1α pathway.
Specimen part, Cell line
View SamplesDuring cancer progression, carcinoma cells encounter a variety of cytotoxic stresses such as hypoxia, nutrient deprivation, and low pH as a result of inadequate vascularization. To maintain survival and growth in the face of these physiologic stressors, a set of adaptive response pathways are induced. One adaptive pathway well studied in other contexts is the unfolded protein response (UPR), of which XBP1 is an important component.
XBP1 promotes triple-negative breast cancer by controlling the HIF1α pathway.
Cell line
View SamplesTo investigate the early host response triggered by three different strains of Trypanosoma cruzi at a local infection site, changes in host gene expression were monitored in a murine intradermal infection model using Affymetrix oligonucleotide arrays. Robust induction of IFN-stimulated genes (ISGs) was observed in excised skin 24 hours post-infection where the level of ISG induction was parasite strain-dependent with the least virulent strain triggering a muted IFN response. Infection of mice immunodepleted of IFN-producing cells or infection of IFN-deficient mice had minimal impact on the IFN response generated in T. cruzi infected mice. In contrast, infection of mice lacking the type I IFN receptor demonstrated that type I IFNs are largely responsible for the IFN response generated at the site of infection. These data highlight type I IFNs as important components of the innate immune response to T. cruzi the site of inoculation and their role in shaping the early transcriptional response to this pathogen.
No associated publication
No sample metadata fields
View SamplesAdiponectin is an adipose-derived hormone with anti-inflammatory activity. Following subacute ozone exposure (0.3 ppm for 24-72 h), pulmonary neutrophilic inflammation is augmented in adiponectin deficient mice. The purpose of this study was to use microarrays to examine the impact of adiponectin deficiency on changes in pulmonary gene expression induced by ozone, a common air pollutant.
Pivotal role of IL-6 in the hyperinflammatory responses to subacute ozone in adiponectin-deficient mice.
Sex, Specimen part
View SamplesObese mice have an augmented response to Ozone exposure (2 ppm for 3 hours and studied 24 hours later), including increase airway hyperresponsiveness and BAL inflammation when compared to WT ozone exposed mice. When IL-17A is block with systemic injected of IL-17A antibodies there is a decrease of response in the obese mice. To determine the mechanism of action, RNA was extracted from the lungs of IL-17A and Isotype injected ozone exposed obese mice and microarray analysis of gene expression was performed.
No associated publication
Sex, Specimen part, Treatment
View SamplesObesity-associated metabolic complications are generally considered to emerge from abnormalities in carbohydrate and lipid metabolism, whereas the status of protein metabolism is not well studied. Here, we performed comparative polysome and associated transcriptional profiling analyses to study the dynamics and functional implications of endoplasmic reticulum (ER)-associated protein synthesis in the mouse liver under conditions of obesity and nutrient deprivation.
Polysome profiling in liver identifies dynamic regulation of endoplasmic reticulum translatome by obesity and fasting.
Sex, Age, Specimen part
View SamplesFollowing the identification of a critical time window of Blood Brain Barrier formation in the mouse embryo, we aimed to identify genes important for barriergenesis. To this end, we isolated cortical and lung E13.5 endothelial cells and compared expression between the two populations.
Mfsd2a is critical for the formation and function of the blood-brain barrier.
Specimen part
View SamplesWe overexpressed the spliced form of transcription factor XBP1 in mature F442A adipocytes by adenoviral infection. Control virus expressed GFP alone.
The role of adipocyte XBP1 in metabolic regulation during lactation.
Specimen part, Cell line
View SamplesHere we report that the transcription factor cyclic AMPresponsive elementbinding protein H (CREB-H, encoded by CREB3L3) is required for the maintenance of normal plasma triglyceride concentrations. CREB-Hdeficient mice showed hypertriglyceridemia secondary to inefficient triglyceride clearance catalyzed by lipoprotein lipase (Lpl), partly due to defective expression of the Lpl coactivators Apoc2, Apoa4 and Apoa5 and concurrent augmentation of the Lpl inhibitor Apoc3. We identified multiple nonsynonymous mutations in CREB3L3 that produced hypomorphic or nonfunctional CREB-H protein in humans with extreme hypertriglyceridemia, implying a crucial role for CREB-H in human triglyceride metabolism.
The transcription factor cyclic AMP-responsive element-binding protein H regulates triglyceride metabolism.
Sex, Specimen part, Treatment
View SamplesXBP1 is the transcriptino factor that is activated by the ER stress. XBP1 is known to induce the ER dexpansion and increase the expression of the ER chaperone genes to prtect the cell from the ER stress. We generated a mouse strain that lacked XBP1 specifically in the mouse intestine by breeding the XBP1flox mice with Villin-cre mice. Here we examined genes that are differentially expressed between WT and XBP1 KO mouse intestine to identify genes that are downstream of XBP1.
XBP1 links ER stress to intestinal inflammation and confers genetic risk for human inflammatory bowel disease.
No sample metadata fields
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