Adenosine, prostaglandin E2, or increased intracellular cyclic AMP concentration each elicit potent anti-inflammatory events in human neutrophils by inhibiting functions such as phagocytosis, superoxide production, adhesion and cytokine release. However, the endogenous molecular pathways mediating these actions are poorly understood. In the present study, we examined their impact on the gene expression profile of stimulated neutrophils. We have identified a set of genes that may be part of important resolution pathways that interfere with cell activation. Identification of these pathways will improve understanding of the capacity of tissues to terminate inflammatory responses and contribute to the development of therapeutic strategies based on endogenous resolution
Impact of anti-inflammatory agents on the gene expression profile of stimulated human neutrophils: unraveling endogenous resolution pathways.
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View SamplesmRNA expression was assayed from bronchial epithelial cells collected via bronchoscopy and nasal epithelial cells collected by brushing the inferior turbinate from healthy current and never smoker volunteers in order to determine the relationship between smoking-related gene expression changes in bronchial and nasal epithelium within the same individual.
Similarities and differences between smoking-related gene expression in nasal and bronchial epithelium.
Sex, Age, Specimen part, Race
View SamplesSmoking is the leading cause of lung cancer death, although only a small percentage of smokers develop the disease. Cigarette smoke exposure is known to cause a field of injury in cells throughout the respiratory tract, and while these airway epithelial cells are morphologically normal, they can undergo genetic alterations in response to cigarette smoke exposure.
Smoking-induced gene expression changes in the bronchial airway are reflected in nasal and buccal epithelium.
No sample metadata fields
View SamplesVitamin D is a secosteroid that has multiple regulatory roles including the regulation of bone and calcium homeostasis. Deficiency of 25-hydroxyvitamin D, the major circulating form of vitamin D, is associated with an increased risk of age-related chronic diseases including Alzheimer's disease, Parkinson's disease, cognitive impairment, and cancer. In this study, we utilized Caenorhabditis elegans to examine the mechanism by which vitamin D influences aging. We found that Vitamin D3-induced lifespan extension requires the stress response pathway genes SKN-1, IRE-1, and XBP-1. Vitamin D3 induced expression of SKN-1 target genes, but not canonical targets of IRE-1/XBP-1. Vitamin D3 suppressed an important molecular pathology of aging, that of widespread protein insolubility, and prevented the toxicity caused by human ß-amyloid. Our observation that vitamin D3 improves protein homeostasis and slows aging highlights the importance of maintaining appropriate vitamin D serum levels, and may explain why such a wide variety of human age-related diseases are associated with a vitamin D deficiency. Overall design: The experimental design consisted of contrasting gene expression data derived from RNA extracted from pools of synchronized aged worms. L4 worms were placed on either vehicle (DMSO) or Vitamin D (100uM) for 44 hours prior to extraction. A pool of 50 worms was considered a single biological replicate. For the Vitamin D treated group, there were 6 independent biological replicates, and were compared with a group of untreated (vehicle) wild-type N2 animals, also using 6 biological replicates.
Vitamin D Promotes Protein Homeostasis and Longevity via the Stress Response Pathway Genes skn-1, ire-1, and xbp-1.
Treatment, Subject
View SamplesEffect of high fat diet feeding on gene expression
Subtle metabolic and liver gene transcriptional changes underlie diet-induced fatty liver susceptibility in insulin-resistant mice.
Sex, Age, Specimen part, Subject
View SamplesRNA was obtained from histologically normal bronchial epithelium of smokers during time of clinical bronchoscopy from relatively accessible airway tissue. Gene expression data from smokers with lung cancer was compared with samples from smokers without lung cancer. This allowed us to generate a diagnostic gene expression profile that could distinguish the two classes. This profile could provide additional clinical benefit in diagnosing cancer amongst smokers with suspect lung cancer.
Airway epithelial gene expression in the diagnostic evaluation of smokers with suspect lung cancer.
Sex, Age, Race
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Integrated analysis of global mRNA and protein expression data in HEK293 cells overexpressing PRL-1.
Cell line
View SamplesThe multifunctional protein tyrosine phosphatase PRL-1 (Gene Symbol: PTP4A1) has been identified as an important oncogene with roles in promoting cell proliferation, survival, migration, invasion, and metastasis. However, little is currently known about the signaling pathways through which it mediates its effects.
Integrated analysis of global mRNA and protein expression data in HEK293 cells overexpressing PRL-1.
Cell line
View SamplesChanges in gene regulation have long been known to play important roles in both innate and adaptive immune responses. However, post-transcriptional mechanisms involved in mRNA processing have been poorly studied despite emerging examples of their role as regulators of immune defenses. We sought to investigate the role of mRNA processing in the cellular responses of human macrophages to live bacterial infections. Overall design: Transcriptomic profiles of 198 infected (Listeria and Salmonella) and non-infected samples at multiple time points.
Adaptively introgressed Neandertal haplotype at the OAS locus functionally impacts innate immune responses in humans.
No sample metadata fields
View SamplesIn order to analyze the global changes in gene expression resulting from loss of Fra signaling, we performed a microarray experiment comparing Drosophila embryos containing a loss of function fra[3] mutation to age matched wildtype
Requirement for commissureless2 function during dipteran insect nerve cord development.
Specimen part
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