evidence that norepinephrine regulates immune cell activity in vivo
Báo cáo khoa học: Lending a helping hand, screening chemical libraries for compounds that enhance b-hexosaminidase A activity in GM2 gangliosidosis cells pptx
... a-synthesis, indicating that the affinity of the b- for the a-subunit is somewhere between those of the two homodimers [12] Interestingly, in Sandhoff cells lacking b-subunits, only a small increase in ... protein Purified protein Decreased enzyme activity Increased residual enzyme activity following heat denaturation Increased enzyme activity in cell lysates ASCC ASCC, SCC 4956 Live cells ASCC, SCC, ... enhancement activity in an ATSD cell line containing a partial splicing defect, whereas NGT did not Additionally, PYR enhanced Hex A and Hex S (not shown) levels in cells expressing five different...
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Báo cáo y học: " GITR signaling potentiates airway hyperresponsiveness by enhancing Th2 cell activity in a mouse model of asthma" ppt
... ex duction vivo in vivo induces enhanced Th2 cytokine proGITR stimulation GITR stimulation in vivo induces enhanced Th2 cytokine production ex vivo Effect of treatment with DTA-1 in vivo on T-lymphocyte ... extensively in vivo In one study it was shown that DTA-1 administration during allergen challenges exacerbated eosinophilic airway inflammation and OVA-specific IgE responses, indicating that Th2 ... to cells isolated from control-antibody treated mice Interestingly, these differences could also be found in cells that did not receive any further stimulation ex vivo ('control'), indicating that...
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Báo cáo y học: " T cell activity in successful treatment of chronic urticaria with omalizumab" pdf
... Serial Follow up of T cell activity Serial Follow up of T cell activity measured as ATP activity release from T -cell during 18 weeks; patient (red line); control (green line) modification of the ... release intracellular ATP During incubation, increased ATP synthesis occurs within the cells that respond to PHA The ATP result was measured by luminescence (562 nm) Serum obtained was stored and total ... each administration for 18 weeks Peripheral blood mononuclear cells (PBMC) were obtained and used in fresh for an immune cell function assay to detect T cell activation (ImmunoKnow™, Cylex Inc Columbia,...
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Báo cáo sinh học: " Overcoming viral escape with vaccines that generate and display antigen diversity in vivo Albert García-Quintanilla" pot
... multiple strain variants of the same antigen [9] Here I propose a new kind of vaccines that generate diversity in vivo Presentation of the hypothesis I hypothesize that priming the immune system ... weak interactions between multiple B -cell receptors and pathogen proteins "adding up" But if a particular B cell can only bind (weakly) to a few copies of antigen on a yeast cell, that B cell ... Williamson AL, McMichael AJ, Hanke T: Combined single-clade candidate HIV-1 vaccines induce T cell responses limited by multiple forms of in vivo immune interference Eur J Immunol 2007, 37:566-577...
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Báo cáo hóa học: " Overcoming viral escape with vaccines that generate and display antigen diversity in vivo" doc
... multiple strain variants of the same antigen [9] Here I propose a new kind of vaccines that generate diversity in vivo Presentation of the hypothesis I hypothesize that priming the immune system ... weak interactions between multiple B -cell receptors and pathogen proteins "adding up" But if a particular B cell can only bind (weakly) to a few copies of antigen on a yeast cell, that B cell ... Williamson AL, McMichael AJ, Hanke T: Combined single-clade candidate HIV-1 vaccines induce T cell responses limited by multiple forms of in vivo immune interference Eur J Immunol 2007, 37:566-577...
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Báo cáo y học: " Defining human mesenchymal stem cell efficacy in vivo" ppsx
... T -cell hyper-reactivity, scarring and remodeling Since hMSCs have the capacity to inhibit scarring and suppress T -cell activity, we investigated the potential of using hMSCs to reverse airway inflammation ... in inflammation, some of the hMSCs remain in the lung whereas in the absence of inflammation the hMSCs continue elsewhere Profiling the life of hMSCs in vivo in the presence and absence of inflammation ... performed by inserting a cannula through a cut in the trachea into the bronchi and infusing × ml aliquots of warm PBS containing 0.2% lidocaine The BAL fluid sample was recovered by aspirating the...
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Tài liệu Báo cáo Y học: Evidence that a eukaryotic-type serine/threonine protein kinase from Mycobacterium tuberculosis regulates morphological changes associated with cell division docx
... Histidine kinases and response regulator proteins in two-component signaling systems Trends Biochem Sci 26, 369–376 Munoz Dorado, J., Inouye, S & Inouye, M (1991) A gene encoding a protein serine/threonine ... A & Jin, S (1998) A novel serine/threonine protein kinase homologue of Pseudomonas aeruginosa is specifically inducible within the host infection site and is required for full virulence in neutropenic ... unknown protein(s), the soluble fraction of cell lysates from E coli strain DH5a was incubated for 10 h at °C with MBP–PknA fusion protein that was immobilized on amylose resin In vitro kinase assays...
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Báo cáo khoa học: Replacement of two invariant serine residues in chorismate synthase provides evidence that a proton relay system is essential for intermediate formation and catalytic activity docx
... three mutant proteins was comparable to that of the wild-type enzyme Binding of oxidized FMN to the mutant proteins To characterize the serine mutant proteins in further detail, binding of the oxidized ... single-mutant proteins where the two serine residues were replaced with alanine, producing two single-mutant proteins (Ser16Ala and Ser127Ala) and a double-mutant protein (Ser16AlaSer127Ala) In ... wat 3, adding another element to such a gating mechanism In summary, our data provide evidence that the two invariant serine residues are required to organize a chain of water molecules in the active...
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Tài liệu Báo cáo khoa học: Evidence that the assembly of the yeast cytochrome bc1 complex involves the formation of a large core structure in the inner mitochondrial membrane pdf
... protein ⁄ core protein 2) in a large core structure that also includes the chaperone protein Bcs1p This core structure is then able to sequentially bind the remaining bc1 subunits in a process that ... [41] It was also shown that the accessory factor Bcs1p in humans is involved in ISP binding into the mitochondrial bc1 complex [41] On the basis of the findings obtained in the present study, we ... quantities of protein utilizing the principle of protein-dye binding Anal Biochem 72, 248–254 Dulley JR & Grieve PA (1975) A simple technique for eliminating interference by detergents in the Lowry...
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Tài liệu Báo cáo khoa học: Polarized distribution of inducible nitric oxide synthase regulates activity in intestinal epithelial cells pdf
... of iNOS to apical domains of intestinal epithelial cells Particulate fraction association of iNOS in vivo In order to determine the distribution of iNOS in intestinal epithelial cells in vivo, ... enrichment in iNOS activity within the particulate fraction of epithelial cells Apical distribution of iNOS in intestinal epithelial cells To get more insight into the localization of iNOS in intestinal ... showed that both in vitro and in vivo, most iNOS protein or activity is associated with the particulate fraction in intestinal epithelial cells These results are consistent with iNOS features in...
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Can’t Shake that Feeling: Event-Related fMRI Assessment of Sustained Amygdala Activity in Response to Emotional Information in Depressed Individuals pptx
... underlying sustained processing, which begin in the seconds following emotional information, are involved in the experience of depressive rumination If these mechanisms involve amygdalar activity, ... important in maintaining processing of emotional information in depressed individuals The current research therefore focused on identifying sustained (ϳ30 sec after a stimulus) disruptions in amygdala ... of rumination were also administered and sustained amygdala activity occurring in the seconds following emotional stimuli was examined in relation to self-reported rumination depression using DSM-IV...
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Báo cáo Y học: Regulation of RAS in human platelets Evidence that activation of RAS is not sufficient to lead to ERK1-2 phosphorylation pot
... precipitated using GST fusion protein containing the RAS-binding domain of RAF Precipitated proteins were resolved by 12.5% SDS/PAGE and analysed by Western blotting using an anti-RAS Ig (top) Proteins ... evaluated in platelets through the ability of the activated RAS–GTP to bind a GST fusion protein containing the RAS-binding domain of RAF Different platelet agonists including thrombin, the snake ... c-chain [11,12] As expected, the SRC kinase family inhibitor PP1 inhibited convulxin-induced ERK and RAS activation (Fig 6A,B) Interestingly, although activation of ERK in response to thrombin...
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Báo cáo khoa học: A systems biological approach suggests that transcriptional feedback regulation by dual-specificity phosphatase 6 shapes extracellular signal-related kinase activity in RAS-transformed fibroblasts pptx
... specific cellular response [18,19] In attempts to predict the transcription factors that are functionally involved in certain ERK-dependent processes, even sophisticated methods, including combinatorial ... study needs to be conducted, including pathway interference, and incooperating biophysical data such as binding constants and protein concentrations, which crucially in uence the dynamics of the ... only rarely taken into account in modeling approaches addressing ERK1,2 signaling, and the role of individual transcription factors targeted through MEK ⁄ ERK signaling was not included Here we...
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Báo cáo khoa học: Identification of preferred substrate sequences for transglutaminase 1 – development of a novel peptide that can efficiently detect cross-linking enzyme activity in the skin pot
... The CE comprises several proteins, including involucrin, loricrin, trichohyalin and small proline rich-proteins, that are preferred substrates for TGases in the skin Of the eight TGase isozymes, ... useful for investigating the role of TGase 1-mediated cross-linking reactions in keratinocytes and in other cells and tissues In ongoing experiments, we are attempting to characterize the reactivity ... sensitivity than FITC-cadaverine Discussion In terminally differentiating stratified epithelial cells, isopeptide cross-linking of keratinocyte proteins into organized protein structures lead to the...
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Báo cáo hóa học: " In vivo evidence of htid suppressive activity on ErbB-2 in breast cancers over expressing the receptor" potx
... growing evidence that the anticancer activity of the hTid proteins occurs through the interference with multiple oncogenic pathways by binding and modifying functions of key molecules maintaining intracellular ... ferently, using the anti-ErbB-2 antiserum cross reacting with the murine receptor resulted in a faint stain of the cytoplasm and rarely in staining of the membrane of the tumor cells (Figure 3B) In the ... E-Cadherin mediated signalling or the Inhibitor of IKB in the NFκB signalling [11], crucial for driving the expression of regulators of cell cycle control, or ii) binding to receptors mediating the...
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Báo cáo hóa học: " Effects of pegylated G-CSF on immune cell number and function in patients with gynecological malignancies" doc
... pleiotropic cytokine that inhibits dendritic cell (DC) maturation [8] and down -regulates immune responses in vivo [9] Finally, G-CSF mobilizes human type DC (DC2) [10] and promotes the in vitro differentiation ... stimulating factor treatment of Crohn’s disease is associated with the appearance of circulating interleukin-10-producing T cells and increased lamina propria plasmacytoid dendritic cells Clin Exp ... safety In this respect, there is accumulating evidence that the biological activities of G-CSF are not limited to the myeloid lineage but extend to cell types and cytokine networks implicated in inflammation,...
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Báo cáo sinh học: " Vascular endothelial growth factor regulates melanoma cell adhesion and growth in the bone marrow" ppt
... non-epithelial origins, is promoted by inflammation [6,10] Proinflammatory cytokines released by cancer cells [11] and tumor-activated BM stromal cells [12] increase cancer cell adhesion to bone cells [13] ... and bone resorption [14,15] In addition, PGE2 induces VEGF [16] and osteoclast formation [17] in preclinical models of bone-metastasizing carcinomas, suggesting that inflammation can lead to tumor-associated ... Cancer Cells Murine B16 melanoma (B16M) cells from the B16F10 subline, and human A375 melanoma (A375M) cell lines were obtained from ATCC (Manassas, VA) and utilized in the present study Both cell...
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Báo cáo sinh học: " Evidence that spontaneous reactivation of herpes virus does not occur in mice" pdf
... in TBS containing 1% bovine serum albumin Following incubation for hour, the slides were washed in three washes of TBS for minutes each and then incubated in the substrate consisting of diaminobenzidine ... acquired immune system but have an intact innate immune system, including cells such as macrophages and natural killer (NK) cells and antiviral cytokines such as the types and interferons NK cells ... be seen (original magnification 400×) that ganglia containing infectious virus, either in the acute stage of infection or following reactivation, placed into the ear pocket resulted in spread of...
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báo cáo hóa học:" Effect of borax on immune cell proliferation and sister chromatid exchange in human chromosomes Malinee Pongsavee" docx
... myoepithelial cells in tissue culture provides a potential mechanism for increasing invasive mammary carcinoma [5] and induced colonic neoplasia in animal models [6] Borax is used as a food additive in ... neurotoxicity in human but the borax toxicity about human genetic materials and humoral immune cell still need to be investigated for food additive carcinogenesis The defect in genetic material and immune ... defect in genetic material and immune cell development involves in human carcinogenesis In this study, we studied about the toxic effects of borax on immune cell proliferation (lymphocyte proliferation)...
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