B cel receptor (BCR) signaling and downstream NF-kB activity are crucial for the generation and activation of innate-like B-1 and conventional B-2 B cells, yet the molecular requirements for these signaling pathways are not fully understood.
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Specimen part
View SamplesTo understand the impact of alternative translation initiation on a proteome, we performed the first study on protein turnover using positional proteomics and ribosome profiling to distinguish between N-terminal proteoforms of individual genes. Overall, we monitored the stability of 1,941 human N-terminal proteoforms, including 147 N-terminal proteoform pairs that originate from alternative translation initiation, alternative splicing or incomplete processing of the initiator methionine. Study design: ribosome profiling of lactimidomycin and cycloheximide treated human Jurkat T-lymphocytes
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View SamplesTranscriptomic profiling of chemical exposure reveals roles of Yap1 in protecting yeast cells from oxidative and other types of stresses
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Disease, Cell line
View SamplesZebrafish ZF4 cell exposed to MMS.
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View SamplesThe object of the study is to examine the role of the neuropeptide Y (NPY) and its receptor (NPY1R) on pulmonary phagocytes in the pathology of influenza virus infection. Wild type and phagocyte-specific NRY1R knockout mice were non-infected or infected with influenza virus, and mRNA-seq analyses were performed using pulmonary phagocytes isolated from those mice.
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View SamplesThe epithelial expression of the insulin receptor in the colon is previously reported to correlate with the extent of colonic inflammation. Here, we investigated the effect of inactivating the epithelial insulin receptor in the intestinal tract, in an experimental model of inflammation-induced colorectal cancer. We report increased susceptibility to chemically-induced colitis together with potentiated colonic tumorigenesis in the knockout mice. Furthermore, we show that topically administered insulin in inflamed colons of wildtype mice reduces inflammation-induced weight loss and improves remission in a dose-dependent manner. Mice receiving rectal insulin enemas exhibited lower colitis endoscopic scores and developed significantly fewer and smaller tumors compared with the control group receiving phosphate-buffered saline only. Rectal insulin therapy can potentially be a novel treatment targeting the epithelial layer to enhance mucosal healing in the ulcerated areas. Our findings open up new possibilities for combination treatments to synergize with the existing anti-inflammatory therapies.
Rectal Insulin Instillation Inhibits Inflammation and Tumor Development in Chemically Induced Colitis.
Treatment
View SamplesGene expression of P. aerruginosa changes after short-term exposure to ciprofloxacin at sub-inhibitory concentrations but the effect of long-term exposure which select for the most fitted subpopulations is not known.
The phenotypic evolution of Pseudomonas aeruginosa populations changes in the presence of subinhibitory concentrations of ciprofloxacin.
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View SamplesGenes involved in the inflammatory response resulting in allergic contact dermatitis (ACD) are only partly known. In this study, we introduce the use of high density oligonucleotide arrays for gene expression profiling in human skin during the elicitation of ACD. Skin biopsies from normal and nickel-exposed skin were obtained from 7 nickel-allergic patients and 5 non-allergic controls at four different time points during elicitation of eczema: 0h, 7h, 48h and 96h. Each gene expression profile was analysed by hybridization to high density oligonucletide arrays.
Gene expression time course in the human skin during elicitation of allergic contact dermatitis.
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View SamplesPurpose: The complement system is closely linked to the pathogenesis of age-related macular degeneration (AMD). Several complement genes are expressed in retinal pigment epithelium (RPE), and complement proteins accumulate in drusen. Further, a common variant of complement factor H (CFH) confers increased risk of developing AMD. Because the mechanisms by which changes in the function of CFH influence development of AMD are unclear, we examined ocular complement expression as a consequence of age in control and CFH null mutant mice.
Complement factor H deficiency results in decreased neuroretinal expression of Cd59a in aged mice.
Specimen part
View SamplesPurpose
Chemokine Expression in Murine RPE/Choroid in Response to Systemic Viral Infection and Elevated Levels of Circulating Interferon-γ.
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