Expression data from HeLa cells treated with V-ATPase inhibitors or with desoxyferramine compared to HeLa treated with DMSO or medium with low LDL
Inhibition of iron uptake is responsible for differential sensitivity to V-ATPase inhibitors in several cancer cell lines.
Cell line
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Comprehensive functional characterization of cancer-testis antigens defines obligate participation in multiple hallmarks of cancer.
Cell line, Treatment
View SamplesWe found that the cancer testis antigen, ZNF165, is required for viability and can modulate TGF-induced gene expression in mesenchymal, Claudin-Low, TNBC. We employed the Affymetrix microarray platform to uncover transcriptionally modulated genes following ZNF165 depletion and TGF stimulation using the Claudin-low TNBC tumor-derived cell lines, SUM159 as a model. Our results provide insight into how ZNF165 globally modulates TGF signaling.
Comprehensive functional characterization of cancer-testis antigens defines obligate participation in multiple hallmarks of cancer.
Treatment
View SamplesExpression profiling by microarray was used with a murine listeriosis model to better understand increased susceptibility of preterm neonates to infection.
No associated publication
Specimen part, Time
View SamplesTlx (nr2e1) is an orphan nuclear receptor that is highly expressed in proliferating neural stem cells (NSCs) in the adult mouse forebrain. The goal was to identify Tlx-regulated genes in this specific cell population. Two populations of Tlx-positive neural stem cells were isolated from 2-month-old male mice based on a LacZ marker that was knocked into the Tlx locus. The first population, Tlx(f/Z;CreER), contains a floxed allele of Tlx (f), the LacZ marker (Z), and a CreER fusion transgene. Addition of tamoxifen (4OH-tamoxifen) into this NSC population leads to Cre-mediated deletion of the floxed allele of Tlx. The second NSC population, Tlx(f/Z), does not contain a CreER transgene; thus it does not respond to tamoxifen treatment and was used as a control.
No associated publication
No sample metadata fields
View SamplesImmortalized colonic epithelial progenitor cells derived from normal human colon biopsies express stem cell markers and differentiate in vitro
Immortalized epithelial cells derived from human colon biopsies express stem cell markers and differentiate in vitro.
Sex, Age, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Differential glucose requirement in skin homeostasis and injury identifies a therapeutic target for psoriasis.
Age, Specimen part
View SamplesCardiac hypertrophy and failure are accompanied by a reprogramming of gene expression that involves transcription factors and chromatin remodeling enzymes. Little is known about the role of histone methylation and demethylation in this process. To understand the role of JMJD2A, a trimethyl demethylase for histone 3 lysine 9 and 36, in cardiac hypertrophy, we generated heart specific JMJD2A deletion (JMJD2A hKO) and overexpression (JMJD2A-Tg) mouse lines. JMJD2A hKO and JMJD2A-Tg mice are viable and have no overt baseline phenotype. However, they have altered responses to cardiac stresses. While inactivation of JMJD2A in hKO mice resulted in an attenuated hypertrophic response to transverse aortic constriction (TAC)-induced pressure overload compared to that of control littermates, JMJD2A-Tg mice have exacerbated cardiac hypertrophy after TAC. We identified four-and-a-half LIM domains 1 (FHL1) as a novel target of JMJD2A. JMJD2A binds to the FHL1 promoter in response to TAC and upregulates the expression of FHL1. Binding of JMJD2A to the FHL1 promoter is associated with downregulation of trimethylated H3K9. Upregulation of FHL1 by JMJD2A is mediated through SRF and myocardin, and requires its demethylase activity. The expression of JMJD2A is upregulated in human hypertrophic cardiomyopathy patients. Our studies reveal that JMJD2A promotes cardiac hypertrophy by synergistically upregulating SRF/myocardin-targeted genes and suggest a novel mechanism of reprogramming of gene expression involved in cardiac hypertrophy.
The histone trimethyllysine demethylase JMJD2A promotes cardiac hypertrophy in response to hypertrophic stimuli in mice.
Age, Specimen part
View SamplesHeart disease and failure is a leading cause of mortality worldwide. Left ventricular hypertrophy (LVH) and myocardial fibrosis are the major risk factor for cardiovascular morbidity and mortality and the development of heart failure. Pathological LVH induced by sustained pressure-overload engages transcriptional programs including reactivation of canonical fetal genes and those inducing fibrosis. Histone lysine demethylases (KDMs) are emerging potent regulators of transcriptional reprogramming in cancer, though their potential role in abnormal growth and fibrosis in heart disease remains little understood. Here, we investigated gain and loss of function of an H3K9me2 specific demethylase, Kdm3a, in myocytes and in vivo, and show it promotes LVH and myocardial fibrosis in response to pressure-overload. Cardiomyocyte KDM3A activates the transcription of tissue-inhibitor of MMP type 1 (Timp1) with pro-fibrotic activity. By contrast, a pan-KDM inhibitor, JIB-04, suppresses TAC-induced LVH and fibrosis. JIB-04 inhibits KDM3A and suppresses the transcription of fibrotic genes that overlap with genes downregulated in Kdm3a-KO mice versus WT controls. Our study provides genetic and biochemical evidence for a pro-hypertrophic function of KDM3A and proof-of principle for pharmacological targeting of KDMs as an effective strategy to counter LVH and pathological fibrosis.
Histone lysine dimethyl-demethylase KDM3A controls pathological cardiac hypertrophy and fibrosis.
Sex, Specimen part
View SamplesGlut1 is highly expressed in basal cells of keratinocytes, but the functions and regulation of Glut1 has not been explored, here we specifically ablate Glut1 in epidermal keratinocytes to elucidate the role of glucose transport in the skin.
Differential glucose requirement in skin homeostasis and injury identifies a therapeutic target for psoriasis.
Age, Specimen part
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