The aim of this study was to investigate the association of gene expression profiles in subcutaneous adipose tissue with percent of total body weight change in 26 kidney transplant recipients.
Expression levels of obesity-related genes are associated with weight change in kidney transplant recipients.
Sex, Race
View SamplesTSC2 loss leads to mTORC1 hyperactivation in Tuberous Sclerosis Complex (TSC) and Lymphangioleiomyomatosis (LAM), and rapamycin or analogues Life-long use of rapalogs are proposed for the treatment of Tuberous Sclerosis Complex (TSC) and Lymphangioleiomyomatosis (LAM), which increases the chances for the development of rapalog resistance. Moreover, a percentage of patients do not respond to rapalogs. Understanding the signaling perturbations leading to rapalog resistance in TSC and LAM is critical for the development of better therapeutic strategies. We developed a Tsc2-null cell line, ELT3-245, that is highly tumorigenic and are refractory to rapamycin treatment.
No associated publication
Cell line, Treatment
View SamplesStrain differences in gene expression in the hypothalamus of BXD recombinant inbred mice
Sex-specific modulation of gene expression networks in murine hypothalamus.
Sex, Age, Specimen part
View SamplesIslet leukocytic infiltration (insulitis) is first obvious at around 4 weeks of age in the NOD mouse a model for human type 1 diabetes (T1DM). The molecular events leading to insulitis are poorly understood. Since TIDM is caused by numerous genes, we hypothesized that multiple molecular pathways are altered and interact to initiate this disease.
Molecular phenotyping of immune cells from young NOD mice reveals abnormal metabolic pathways in the early induction phase of autoimmune diabetes.
Age, Specimen part
View SamplesType 1 diabetes is a multigenic disease caused by T-cell mediated destruction of the insulin producing -cells. Although conventional (targeted) approaches of identifying causative genes have advanced our knowledge of this disease, many questions remain unanswered. Using a whole molecular systems study, we unraveled the genes/molecular pathways that are altered in CD4 T-cells from young NOD mice prior to insulitis (lymphocytic infiltration into the pancreas). Many of the CD4 T-cell altered genes lie within known diabetes susceptibility regions (Idd), including several genes in the diabetes resistance region Idd13 and two genes (Khdrbs1 and Ptp4a2) in the CD4 T-cell diabetogenic activity region Idd9/11. Alterations involved apoptosis/cell proliferation and metabolic pathways (predominant at 2 weeks), inflammation and cell signaling/activation (predominant at 3 weeks), and innate and adaptive immune responses (predominant at 4 weeks). We identified several factors that may regulate these abnormalities: IRF-1, HNF4A, TP53, BCL2L1 (lies within Idd13), IFNG, IL4, IL15, and prostaglandin E2, which were common to all 3 ages; AR and IL6 to 2 and 4 weeks; and Interferon (IFN-I) and IRF-7 to 3 and 4 weeks. Others were unique to the various ages (e. g. MYC, JUN, and APP to 2 weeks; TNF, TGFB1, NFKB, ERK, and p38MAPK to 3 weeks; and IL12 and STAT4 to 4 weeks). Our data suggest that diabetes resistance genes in Idd13 and Idd9/11, and BCL2L1, IL6-AR and IFNG-IRF-1-IFN-I/IRF-7-IL12 pathways play an important role in CD4 T-cells in the early pathogenesis of autoimmune diabetes. Thus, the alternative approach of investigation at the molecular systems level has captured new information, which combined with validation studies, offers the opportunity to test hypotheses on the role played by the genes/molecular pathways identified in this study, to understand better the mechanisms of autoimmune diabetes in CD4 T-cells, and to develop new therapeutic strategies for the disease.
Molecular pathway alterations in CD4 T-cells of nonobese diabetic (NOD) mice in the preinsulitis phase of autoimmune diabetes.
Age, Specimen part
View SamplesRheumatoid arthritis (RA) is a heterogeneous disease with clinical and biological polymorphisms. However, little is known about baseline molecular variations among individual RA patients. The purpose of this study was to address this issue using F2 intercross mice generated from arthritis-prone BALB/c and arthritis-resistant DBA/1 mice deficient for interleukin 1 receptor antagonist (Il1rn). Two distinct subpopulations of arthritic mice were identified in the 38 mice studied. One subgroup of diseased mice was characterized by myeloid cell dominant inflammation, whereas the other was mainly associated with increased anti-apoptotic activities of inflammatory cells.
No associated publication
No sample metadata fields
View SamplesWe perform microarray analysis of HUVECs upon stimulation with virulent wildtype C. albicans strain SC5314 or its efg1/efg1 cph1/cph1 hyphal-deficient derivative strain CAN34 to compare the gene expression profiles elicited from HUVECs in response to these strains. In addition, these responses are compared to that of TNF-alpha induced responses to determine which responses are Candida-specific.
Transcriptome profile of the vascular endothelial cell response to Candida albicans.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Intra-ophthalmic artery chemotherapy triggers vascular toxicity through endothelial cell inflammation and leukostasis.
Specimen part, Treatment
View SamplesRheumatoid arthritis (RA), one of the most common polygenic diseases, is characterized by a chronic, progressive inflammation mainly in joints and has an unknown etiology. Numerous studies have revealed the significance of cytokines TNF and IL-1 in the onset and progression of RA. Due to the complexity of interactions among different cytokines and immune cells, little is known about the precise molecular mechanisms underlying RA. In this study, oligonucleotide microarray analysis and a mouse model of RA, IL-1 receptor antagonist deficient mice were used to address this issue. Two hundred and ninety transcripts were found to be dysregulated greater than or equal to 2-fold in the diseased mice. Phase-specific gene expression changes were identified, including early increase and late decrease of heat shock protein coding genes and Cyr61. Moreover, common gene expression changes were also observed, especially the upregulation of paired-Ig-like receptor A (Pira) in both early and late phases of arthritis. We conclude that common and distinct gene expression change patterns that were identified globally may represent novel opportunities for better control of RA through early diagnosis and development of alternative therapeutic strategies.
No associated publication
No sample metadata fields
View SamplesA Ciz1 gene-trap knock-out (KO) mouse model was generated to examine the functional role(s) of Ciz1 in the sensorimotor nervous system and contributions of Ciz1 to cell-cycle control in the mammalian brain.
No associated publication
Sex, Specimen part
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