3rapid action of steroids in mast cells
Báo cáo khoa học: Tumour necrosis factor-a attenuates insulin action on phosphoenolpyruvate carboxykinase gene expression and gluconeogenesis by altering the cellular localization of Foxa2 in HepG2 cells pptx
... prevention of the effect of insulin on Foxa2 localization and leading to the abrogation of insulin inhibition of gluconeogenesis and glucose output in HepG2 cells Although TNFa-mediated inhibition of insulin ... decrease in Foxa2 occupancy of the PEPCK promoter This decrease was significantly (P < 0.01) attenuated in cells preincubated in the presence of TNFa prior to insulin incubation In cells incubated in ... validation in primary cells and animal models but, as a preliminary step, they unravel one of the mechanisms of TNFamediated withdrawal of insulin action in HepG2 cells Results Incubation of HepG2 cells...
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Báo cáo y học: "Coaggregation of Fc RI with Fc RIIB Inhibits Degranulation but Not Induction of Bcl-2 Family Members A1 and Bim in Mast Cells" ppsx
... 0.2% bovine serum albumin, mM of L-glutamine, and 100 µg/mL of penicillin/streptomycin The cells were sensitized for 90 minutes at 37°C by the addition of 0.1 µg/mL of monoclonal anti-dinitrophenyl ... downstream of PI3-kinase, involved in a variety of cellular functions such as survival and Coaggregation of Fc⑀RI with Fc␥RIIB in Mast Cells — Ekoff et al 91 Figure Inhibition of IgE-mediated mast- cell ... activation of protein kinase B by insulin and IGF-1 EMBO J 1996;15:6541–51 Coaggregation of Fc⑀RI with Fc␥RIIB in Mast Cells — Ekoff et al 97 33 Aman MJ, Lamkin TD, Okada H, et al The inositol...
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Báo cáo y học: " Mutation Analysis of hCDC4 in AML Cells Identifies a New Intronic Polymorphis"
... polymorphism (SNP) in the intron sequence flanking the 3’ end of exon 10 in out of 35 (20%) patient samples The SNP consisted of a C > T exchange (Figure C-E) and was positioned at nt 67 of the intron sequence ... protein was found while screening 14 exons of 35 patient samples suggests that mutations of hCDC4 not play a significant role in the pathogenesis of AML During sequence analysis of exon 10 in the ... G Elevated c-Jun expression in acute myeloid leukemias inhibits C/EBPalpha DNA binding via leucine zipper domain interaction Oncogene 2003;22(30):4760-4 Staber PB, Linkesch W, Zauner D, Beham-Schmid...
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Tài liệu Báo cáo khoa học: Extended half-life upon binding of destabilized intrabodies allows specific detection of antigen in mammalian cells pdf
... maintained in the cells by binding to antigen Generation of soluble binding-defective and cysteine-deleted mutants To demonstrate that the observed intracellular colocalization was the result of ... 7A-cotransfected cells, thus demonstrating that strong in vivo binding of the destabilized 13R4-d1-EGFP proteins allows them to be maintained in the cells To rule out the possibility that the EGFP part of ... measuring protein mobility and activity in living cells Nature Cell Biol 3, 145–147 Bachmair A, Finley D & Varshavsky AK (1986) In vivo half-life of a protein is a function of its amino-terminal...
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Tài liệu Báo cáo khoa học: Gene transcription of fgl2 in endothelial cells is controlled by Ets-1 and Oct-1 and requires the presence of both Sp1 and Sp3 pdf
... POU homeodomain family proteins bind to this consensus motif and regulate gene transcription in diverse cells through interaction with a variety of partner DNA binding proteins, including Sp1 family ... matrix/adhesion protein, possibly necessary for development of a normal fetus and in regulating immune responses within the intestine Induction of fgl2 in macrophages in response to viruses results in the ... The function of constitutively expressed fgl2 at low levels in cells or tissues including cytotoxic T cells, trophoblasts, intestinal epithelial cells and endothelial cells remains to be defined...
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Báo cáo khoa học: Ca2+/calmodulin-dependent kinase II signalling cascade mediates P2X7 receptor-dependent inhibition of neuritogenesis in neuroblastoma cells docx
... repression of neurite outgrowth It should be noted that P2X7 receptors can interact directly with structural proteins such as b-actin, a-actinin, laminin a3 and integrin b2 in HEK cells, some of which ... neuroblastoma cells Results Molecular characterization of purinergic P2X receptors in N2a cells In order to investigate the presence of native purinergic receptors in N2a cells, the expression of mouse ... role of this kinase in the control of neuritogenesis in N2a cells (Fig 5E) Involvement of FAK in BBG-mediated neurite formation in N2a cells As shown previously, silencing of P2X7 receptors with...
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Báo cáo khóa học: Surface nucleolin participates in both the binding and endocytosis of lactoferrin in target cells potx
... crosslinking of a ligand leads to the clustering or capping of its surface receptor Accordingly, we investigated the distribution of surface nucleolin following the crosslinking of bound hLf using ... the binding of HB-19 Similarly, the iron-binding hTf had no effect On the other hand, bLf inhibited the binding of HB-19 to cells In accordance with the involvement of both lobes of hLf in the ... showing the efficient competition between Lf and HB-19 for binding to nucleolin, suggest that the C-terminal tail of nucleolin should be implicated in the mechanism of binding of Lf to nucleolin In...
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Báo cáo Y học: Mydj2 as a potent partner of hsc70 in mammalian cells doc
... R.A., Narain, Y., Rankin, J & Rubinsztein, D.C (2000) Effects of heat shock, heat shock protein 40 (HDJ-2) and proteosome inhibition on protein aggregation in cellular models of Huntington’s disease ... to bind to immobilized Mydj2-His protein (lanes 3, 3¢) In contrast, no binding between the immobilized dj2 protein and the inducible hsp70 protein was observed (Fig 6, lanes: 3, 3¢) Interestingly, ... were obtained by injecting a male rabbit with purified Mydj2 protein [30] Protein–protein interactions experiments For immunoprecipitations, cell lysates prepared in RIPA buffer were incubated...
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Báo cáo khoa học: Analysis and biological relevance of advanced glycation end-products of DNA in eukaryotic cells ppt
... number of cells was analyzed (Fig 2B) In order to investigate whether CEdG has the potential to accumulate in genomic DNA of nongrowing cells, HSC-T6 cells were kept in minimal medium containing ... detected in human urine [13], indicating the formation of DNA AGEs in the healthy human organism A significantly increased number of CEdGpositive cells were immunostained in glomeruli of patients ... we investigated whether CEdG accumulates in resting HSC-T6 cells After 14 days of incubation, a 1.7-fold increase of CEdG content in the genomic DNA of the cells was measured These results indicated...
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báo cáo hóa học: " PLGA-based gene delivering nanoparticle enhance suppression effect of miRNA in HePG2 cells" docx
... profiles of PLGA-based nanoparticles transfected HepG2 cells Numbers in Table indicate the percentage of cells remaining in each phase of cell cycle (A) Untreated group; (B) miR-NC contained nanoparticles ... hepatocellular carcinoma cell) cells were cultured in DMEM supplemented with 10% FBS, streptomycin at 100 μg/mL, and penicillin at 100 U/mL Cells were maintained at 37°C in humidified and 5% CO2 incubator ... that the remaining reagents (5 × buffer, primescript RTase (TaKaRa, Dalian, China), dNTPs, Page of DTT, and RNase inhibitor(SunshineBio, Nanjing, China) were added as specified according to the...
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Báo cáo y học: "Significance of Conversation between Mast Cells and Nerves" pdf
... mast cell functions, how mast cells use sensory nerves in inducing inflammation, and the role of nerve fibres and their mediators New findings will continue to increase our understanding of mast ... from their being resident cells, mast cells can move through the brain in the absence of inflammation Mast cells in the central nervous system may participate in the regulation of inflammatory ... functions of mast cells. 23 Furthermore, mast cells are known to have a significant variety of actions and interactions with other cells and physiologic systems Mast cells can be divided into various...
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Báo cáo y học: "Molecular action of methotrexate in inflammatory diseases" ppt
... function of adhesive molecules including β2-integrin, L-selectin, and CD11b/CD18 [49,53,54] The activity of adenosine in the modulation of neutrophil adhesion again demonstrates the opposing roles of ... R: Mechanism of action of methotrexate: experimental evidence that methotrexate blocks the binding of interleukin beta to the interleukin receptor on target cells Eur J Clin Chem Clin Biochem 1993, ... RA, acting through the release of adenosine, also inhibits the production of TNF-α, although the adenosine receptor involved in this action remains controversial [60–63] Modulation of cytokine production...
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báo cáo khoa học: "Mechanism of action of lenalidomide in hematological malignancies" pptx
... PBMC cells incubated in the presence of IMiDs for days The increase in NK cell function may be related to the increase in IL-2 production by the T cells as the presence of a monoclonal Ab against ... was induced with the interaction of Ig G with FC-γ receptors in the presence of IL-2 or IL-12 Thus, lenalidomide enhanced Fc-γ receptor signaling may also play a role in increasing the potency of ... phosphorylation of stat5 Furthermore, they observed that lenalidomide is a Protein Tyrosine Phosphatase inhibitor of CD45 leading to reversal of CD45 induced inhibition of EPO-R/STAT5 signaling essential...
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báo cáo khoa học: "Differential Expression of MicroRNAs in CD34+ Cells of 5q- Syndrome" pdf
... phenotype [20] In our study, miR-146a expression was down-regulated by 30% in BM CD34+ cells of 5qpatients Interestingly, gene expression of this miRNA showed increased levels in PB patient cells Pons ... studies of miRNAs in MDS were performed on partly separated or nonseparated cells of bone marrow [3,4] In this study, we thus focused on progenitor cells of 5q- syndrome in order to determine miRNA ... overexpression of miR-146 in BM mononuclear cells of MDS patients with del(5q) [3] To define potential downstream targets of the deregulated miRNAs in 5q- patients, we performed an integrative analysis of...
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Báo cáo y học: " Cigarette smoke exacerbates mouse allergic asthma through Smad proteins expressed in mast cells" pps
... expression of Smad proteins was occurring in mast cells, we examined co-localization of tryptase contained in mast cell granules and Smad3 protein in lung tissues using double staining As shown in Figure ... smoking (4 mo) did not show enhanced numbers of mast cells in OVA-induced lung tissues in vivo [13] In contrast to these findings, we observed that smoke elevated the numbers of mast cells in ... (B) Numbers of mast cells were determined in BAL cells collected by Cytospin or in lung tissues sectioned (3 μm) in 200 × 200 μm area under microscopy using May Grünwald-Giemsa staining (C) Data...
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Báo cáo y học: "Two discrete events, human T-cell leukemia virus type I Tax oncoprotein expression and a separate stress stimulus, are required for induction of apoptosis in T-cells" pptx
... Results Zinc, but not cadmium, treatment induces apoptosis in JPX-9 cells To examine the effect of Tax on the growth/death of Jurkat cells, we studied its induction by Zn or Cd in the JPX-9 cell line ... T ax∆2-58 T ax∆2-58+J NK Figure Induction of cell death in Hct116 cells by Tax + Jun kinase Induction of cell death in Hct116 cells by Tax + Jun kinase Hct116 cells were transfected with pCMV-beta-gal ... 94:10057-10062 Hofer-Warbinek R, Schmid JA, Stehlik C, Binder BR, Lipp J, de Martin R: Activation of NF-kappa B by XIAP, the X chromosomelinked inhibitor of apoptosis, in endothelial cells involves...
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Báo cáo y học: "Segmentation-based detection of allelic imbalance and loss-of-heterozygosity in cancer cells using whole genome SNP arrays" ppsx
... cell content from simulated data using segmentation Tumor cells (%) Tumor cells using hemizygous loss (%)* Tumor cells using single copy gain (%)† Tumor cells using copy neutral LOH (%)‡ Paired ... (Courtesy of Illumina Inc.) Reference data set consists of 120 HapMap samples hybridized on Illumina HumanHap300 version Genotyping BeadChips (Courtesy of Illumina Inc.) Reference data set consists of ... Illumina HumanCNV370 Genotyping BeadChips (Courtesy of Illumina Inc.) Reference data set consists of 120 HapMap samples hybridized on Illumina HumanHap550 Genotyping BeadChips (Courtesy of Illumina...
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The action of snake in venoms on surfaces film
... considerable increase in area since the area per hydrocarbon chain in lysolecithin films is nearly double that obtaining in a lecithin film at the same state of compression The more expanded nature of ... considerably diminished as the number of molecules of lecithin per sq cm is increased (Fig 3) The time for complete hydrolysis of the film increases from to 100 minutes for a doubling of the initial ... action is not inhibited in the presence of 0-5 % NaF ACTION OF SNAKE VENOMS ON SURFACE FILMS 439 (ii) Effect of 8urface concentration8 of lecithin The rate of attack of a lecithin film is considerably...
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A multiplex comparative proteomic analysis of hypoxia influence in the presence and absence of p53 in HCT116 cells
... resulting in a big influx of newly discovered proteins joining inline with already known proteins involved in known processes Therefore, it is important that the new and old data are stringently ... containing a DNA-binding domain (DBD, aa 94-292) that is responsible for the DNA-protein interactions This core region is also the hotspot for most of p53 mutations found in human In the C-terminal ... mechanisms of production [A] Human p53 isoforms [B] Asp53, a mouse-specific isoform Yellow: N-terminal domain; blue: DNA-binding domain; green: C-terminal domain; grey: noncoding exons of RSp53...
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Báo cáo Y học: Proteasome-driven turnover of tryptophan hydroxylase is triggered by phosphorylation in RBL2H3 cells, a serotonin producing mast cell line pptx
... in the absence of proteasome inhibitors (lane in Fig 1B, 32P vs WB) Inhibition of TPH degradation in the cell-free proteasome system by protein kinase inhibitors We examined the involvement of ... phosphorylation of non-neural TPH, including that of pineal or neoplastic mastocytoma cells Evidence of TPH phosphorylation in living cells We first observed that okadaic acid, a protein phosphatase inhibitor, ... Subsequently, cells were fed 0.4 mCiÆmL)1 [32P]NaH2PO4 for 30 32P-Loading was further continued for 120 in the presence of protein-kinase inhibitors or proteinphosphatase inhibitors Cells were then rinsed...
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