This SuperSeries is composed of the SubSeries listed below.
Impaired neutrophil function in 24p3 null mice contributes to enhanced susceptibility to bacterial infections.
Sex, Age, Specimen part
View SamplesLipocalin 24p3 (24p3) is a neutrophil secondary granule protein. 24p3 is also a siderocalin, which binds several bacterial siderophores. It was therefore proposed that synthesis and secretion of 24p3 by stimulated macrophages or release of 24p3 upon neutrophil degranulation sequesters iron-laden siderophores to attenuate bacterial growth. Accordingly, 24p3-deficient mice are susceptible to bacterial pathogens whose siderophores would normally be chelated by 24p3. Specific granule deficiency (SGD) is a rare congenital disorder characterized by complete absence of proteins in secondary granules. Neutrophils from SGD patients, who are prone to bacterial infections, lack normal functions but the potential role of 24p3 in neutrophil dysfunction in SGD is not known. Here we show that neutrophils from 24p3-deficient mice are defective in many neutrophil functions. Specifically, neutrophils in 24p3-deficient mice do not extravasate to sites of infection and are defective for chemotaxis. A transcriptome analysis revealed that genes that control cytoskeletal reorganization are selectively suppressed in 24p3-deficient neutrophils. Additionally, small regulatory RNAs (miRNAs) that control upstream regulators of cytoskeletal proteins are also increased in 24p3-deficient neutrophils. Further, 24p3-deficient neutrophils failed to phagocytose bacteria, which may account for the enhanced sensitivity of 24p3-deficient mice to both intracellular (Listeria monocytogenes) and extracellular (Candida albicans, Staphylococcus aureus) pathogens. Interestingly, Listeria does not secrete siderophores and additionally, the siderophore secreted by Candida is not sequestered by 24p3. Therefore, the heightened sensitivity of 24p3-deficient mice to these pathogens is not due to sequestration of siderophores limiting iron availability, but is a consequence of impaired neutrophil function.
Impaired neutrophil function in 24p3 null mice contributes to enhanced susceptibility to bacterial infections.
Sex, Age, Specimen part
View SamplesMicroarray analysis was performed to identify transcriptional changes that occur during mucociliary differentiation of human primary bronchial epithelial cells cultured at an air-liquid interface (ALI).
Transcriptional profiling of mucociliary differentiation in human airway epithelial cells.
No sample metadata fields
View SamplesPuberty unmasks or accelerates nephropathies, including the nephropathy of diabetes mellitus (DM). A number of cellular systems implicated in the kidney disease of DM interweave, forming an interdependent functional web. We performed focused microarray analysis to test the hypothesis that one or more genes in the transforming growth factor beta (TGF-) signaling system would be differentially regulated in male rats depending on the age of onset of DM.
Prepubertal onset of diabetes prevents expression of renal cortical connective tissue growth factor.
No sample metadata fields
View SamplesGenetic comparison between periosteal skeletal stem cells and bone marrow skeletal stem cells in mice
Comparative analysis of gene expression identifies distinct molecular signatures of bone marrow- and periosteal-skeletal stem/progenitor cells.
Specimen part
View SamplesAnalysis of ZR-75-1 cells folowing knockdown of EI24 (P53-Induced Gene 8) and control vector. As a p53 response gene, EI24 is known to controlling cell growth, apoptosis, and autophagy.
EI24 regulates epithelial-to-mesenchymal transition and tumor progression by suppressing TRAF2-mediated NF-κB activity.
Cell line, Treatment
View SamplesGlutathione S-transferases (GSTs) are the ubiquitous enzymes, which play important role in defense against various stresses. To analyze the function of a rice GST gene, OsGSTU4, we overexpressed it into Arabidopsis constitutively. The physiological analyses revealed that overexpression of GRX gene enhanced abiotic stress tolerance in transgenic plants as compared to wild-type.
Over-expression of a rice tau class glutathione s-transferase gene improves tolerance to salinity and oxidative stresses in Arabidopsis.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Systemic Wound Healing Associated with local sub-Cutaneous Mechanical Stimulation.
Sex, Specimen part
View SamplesWe report the application of Affymetrix technology for high-throughput profiling of the transcriptome of the rheumatoid arthritis (RA) rat model induced by collagen type II (CIA), with acupuncture, Methotrexate, Isofluorane anesthetic and placebo treatments, as well as the healthy control.
Systemic Wound Healing Associated with local sub-Cutaneous Mechanical Stimulation.
Sex, Specimen part
View SamplesThe goal of this study was to determine the differential expression of specific genes within the papilloma tissues themselves and to characterize the array of host genes that might be important in the pathophysiology of recurrent respiratory papillomatosis.
Immune dysregulation and tumor-associated gene changes in recurrent respiratory papillomatosis: a paired microarray analysis.
No sample metadata fields
View Samples