the role of receptor protein tyrosine phosphatases in axonal pathfinding
báo cáo hóa học: " Signaling pathways mediating a selective induction of nitric oxide synthase II by tumor necrosis factor alpha in nerve growth factor-responsive cells" pptx
... a role in inducing iNOS expression remains to be established Nonetheless, inhibition of NF-κB completely inhibited iNOS induction while inhibition of MAPK was ineffective (Figure 5A) Lastly, inhibition ... with either an empty vector or expression vectors for chimeric receptor proteins bearing the human TNFR1 ligand binding domains and the intracellular domain of either rat p75NTR or TrkA NGF receptors ... in the presence of the glutamate agonist NMDA [4] illustrate the importance of considering the signaling "context" when studying the effects of cytokine treatment Overall, our data indicate the...
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Tài liệu Báo cáo khoa học: Interaction between very-KIND Ras guanine exchange factor and microtubule-associated protein 2, and its role in dendrite growth – structure and function of the second kinase noncatalytic C-lobe domain docx
... for the specific MAP2 binding resides within the 32 residues (amino acids 456–487) of the v-KIND KIND2 domain To examine whether the MAP2 binding core site of v-KIND binds to intact MAP2 protein, ... in the KIND2 domain of v-KIND contain the core MAP2 binding module To identify the core MAP2-binding site within the KIND2 domain (amino acids 456–620), we analyzed five EGFP-fused KIND2 domain ... obtained indicate that the KIND2 domain is necessary and sufficient for the targeting of v-KIND to dendrites of neurons To investigate the MAP2-binding characteristics of the KIND domain protein...
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Báo cáo khoa học: Liver receptor homolog-1 localization in the nuclear body is regulated by sumoylation and cAMP signaling in rat granulosa cells docx
... family proteins, have been described to promote the transfer of SUMO from E2 to target proteins in vivo The attachment of SUMO may result in diverse effects on the substrate protein, including cellular ... E3 proteins, or promote the targeting of sumoylated LRH-1 into nuclear bodies The expression of these putative factors could differ between cells Whether coordinated SUMO modifications of these ... and Sox9 Mol Endocrinol 18, 2451–2462 39 Kim YH, Choi CY & Kim Y (1999) Covalent modification of the homeodomain-interacting protein kinase (HIPK2) by the ubiquitin-like protein SUMO-1 Proc Natl...
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báo cáo hóa học: " Treatment with gelsolin reduces brain inflammation and apoptotic signaling in mice following thermal injury" potx
... gelsolin decreased burn-induced proinflammatory cytokines in the brain To further validate and explore the above findings, we next investigated the time course of mRNA expression of proinflammatory ... cytokines by real-time PCR in brain of burned mice On account of the lack of significant improvement in pathology in Gsn-L mice, only the gene expression of proinflammatory cytokines in the brains ... macrophages Since gelsolin is known as a strong chemoattractant [22], we further investigated the involvement of gelsolin in the migration of myeloid-origin cells into the brain To our surprise, the numbers...
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Báo cáo hóa học: " Resveratrol engages AMPK to attenuate ERK and mTOR signaling in sensory neurons and inhibits incision-induced acute and chronic pain" pptx
... component of the signaling module of all tyrosine kinase receptors (Trks) and is linked to GP130 (the IL-6 signal transduction receptor) signaling [51] This interaction may explain the inhibitory ... activation in alleviation of neuropathic pain [18], hence, the findings described herein expand the potential clinical usefulness of AMPK activators into the area of post-surgical pain We conclude ... after incision Discussion The present findings make a compelling case for the use of resveratrol as a local treatment for both incision induced pain and prevention of chronic pain induced by incision...
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Báo cáo y học: "Activation of WNT and BMP signaling in adult human articular cartilage following mechanical injury" potx
... after the operation The asterisk indicates the site of injury (occupied by debris) The dashed line indicates the margin of the injury site level in vivo in a mouse model of joint surface injury ... determine activation of BMP signaling independently of the expression of one ligand, including secretion and solubility of the ligand(s), its/their binding to matrix molecules, the presence of secreted ... Image obtained by false coloring in red the image in (d) and superimposing it on the fluorescent image in the blue channel documenting the nuclear DAPI counterstain The DAB precipitate in the phosphorylated...
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Báo cáo khoa hoc:" VEGF receptors on PC12 cells mediate transient activation of ERK1/2 and Akt: comparison of nerve growth factor and vascular endothelial growth factor" doc
... express the high-affinity receptor tyrosine kinases VEGF receptor and (VEGFR-1, VEGFR-2) as well as the low-affinity receptor neuropilin1 (Fig 2) These receptors are expressed on the cell surface of ... Alkaline phosphatase (AP) staining of (a, d) proliferating and (b) differentiated PC12 cells revealed binding of the APmVEGF164 affinity probe while AP-murine endostatin (APmESXVIII) only stained ... System, PerkinElmer) Experiments were performed in triplicate Results Differential cell binding of VEGF and endostatins To determine the expression profile of binding partners for murine VEGF164,...
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Báo cáo y học: "Global analysis of alternative splicing regulation by insulin and wingless signaling in Drosophila cells" ppt
... upon activation of the insulin and wingless pathways in S2 cells Binding of insulin-like peptides to the insulin receptor in Drosophila cells leads to the activation of dPI3 kinase, which Genome ... therein) Another prominent example is the eye imaginal disc, the precursor of the eye Temporal coordination of inputs from the Hedgehog, Wingless, Decapentaplegic, Notch, Receptor Tyrosine Kinase ... Insulin regulates alternative splicing of protein kinase C beta II through a phosphatidylinositol 3-kinasedependent pathway involving the nuclear serine/argininerich splicing factor, SRp40, in...
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Báo cáo khoa học: "Immunohistochemical Localization of Nerve Growth Factor,Glial Fibrillary Acidic Protein and Ciliary Neurotrophic Factor in Mesencephalon, Rhombencephalon, and Spinal Cord of Developing Mongolian Gerbil" ppsx
... NGF-IR staining was found in the inferior olive forward PND1 (Fig 1B) By PNW3, the extent of the reactivity decreased in the midbrain, adding to the potency of the reactivity In addition to the dorsal ... portion of the midbrain, NGF-IR was found in the internal geniculum of facial nerve after PND (Fig 4D), observed well fine at PNW2 (Fig 1C) and the nucleus of the spinal tract of the trigerminal ... expressed in the developing brainstem and spinal motor neurons The function of NGF can be distinguished from the cellular sites of the NGF [21, 26] In case of rats, NGF-IR expression in these neurons...
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Báo cáo khoa học: "In vitro and in vivo gene therapy with CMV vector-mediated presumed dog b-nerve growth factor in pyridoxine-induced neuropathy dogs" pot
... day of pyridoxine injection On the fourth day of pyridoxine injection, all dogs held their hindlimb stiffly when standing These conditions were maintained until the end of the pyridoxine injection ... vacuolation (arrow) of the myelin in the positive control group (C) Mild vacuolation (arrow) of the myelin in sciatic nerve of the gene therapy group H&E stain, ×400 of L4 in the positive control ... determine the effect of the cytomegalovirus (CMV) vector-mediated gene transfer of the pdβ-NGF in vitro and gene therapy using recombinant pdβ-NGF plasmid in the dog model, having pyridoxine-induced...
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Báo cáo y học: " Aging, osteoarthritis and transforming growth factor-β signaling in cartilage" pps
... Research & Therapy Vol No Reddi R-Smads and the C-Smad have a highly conserved Mad homology domains (MH in the amino terminus and MH in the carboxy terminus) References Binding of the TGF-β isoforms ... localized in the joints of young and old mice In 2-yearold mice there was a decline in the expression of TGF-β2, TGF-β3 and TGF-β receptor It is noteworthy that the number of cells expressing phosphorylated ... novel therapeutic approaches to the amelioration of the horrendous, painful consequences of osteoarthritis in aging humans Competing interests The author(s) declare that they have no competing interests...
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Báo cáo y học: "Nerve growth factor and receptor expression in rheumatoid arthritis and spondyloarthritsi" potx
... activates the mitogen-activated protein kinase pathway involving the c-jun N-terminal, the p38, and the extracellular-regulated protein kinases (ERK1/2) all of which have been identified in arthritis ... not in large amounts Nevertheless, FLS are most likely one of the targets of NGF To date, the functional role of neurotrophins in inflammatory joint disorders is unclear A pathogenic role for the ... [7], the mRNA transcripts encoding both the highaffinity NGF receptor trkA and the common low-affinity receptor p75 revealed the highest expression levels in SF of the SpA and the RA group being...
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Báo cáo y học: " Increased expression of matrix metalloproteinase-10, nerve growth factor and substance P in the painful degenerate intervertebral disc" pot
... (4-aminophenylmercuric acetate), trypsin or plasmin [19,25,33] Such potent activation of these proteins can therefore shift the balance of activity in favour of MMP activity over their inhibitors ... correlates with increases in the expression of MMP-10 The findings also demonstrate a strong correlation between increases in NGF and increases in the pain-associated neuropeptide substance P in surgical ... to increased nociception in painful IVD degeneration Page of (page number not for citation purposes) The aim of the current study was to examine the gene and protein expression of MMP-10 in histologically...
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Báo cáo y học: "Functional significance of nerve growth factor and its receptor (TrkA) in inflammatory arthritis" pps
... proliferating FLSs produce proteinases that degrade cartilage and underlying cortical bone [4] We noticed that proinflammatory cytokines upregulate NGF/TrkA in FLSs, NGF/TrkA is upregulated in FLSs of in ammatory ... to FLSs (Figure 1) These observations suggest an autocrine loop of NGF for FLS proliferation and suggest that dysregulated production of NGF has the potential to in uence the in ammatory and proliferative ... spondyloarthritis; ST, synovial tissue Competing interests The authors declare that they have no competing interests Published: 28 June 2010 References Barthel C, Yeremenko N, Jacobs R, Schmidt RE,...
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Báo cáo y học: " Open Access Growth factor signaling in lung morphogenetic centers: automaticity, stereotypy and symmetry" doc
... overexpression in the distal epithelium of Noggin (a secreted inhibitor of BMPs) or of a dominant negative form of the Bmp type I receptor, activin receptor- like kinase (Alk6), results in a distal epithelium ... own system of checks and inducible balances such as the binding proteins and the negative Smads in the BMP signaling pathway and the Spry gene family in the FGF pathway Moreover each of these pathways ... of branching in the presence of mesenchyme and at physiologic concentrations in lung explants Moreover, the effects of BMP4 are in turn negatively modulated by the BMP binding proteins Gremlin...
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Tài liệu Báo cáo khoa học: Osmotic stress sensing and signaling in fishes doc
... (within h) induced by hyperosmotic stress, indicating a role of this mitogenactivated protein kinase kinase kinase interacting protein for osmosensory signal transduction in fish 14-3-3 proteins ... cascades, mitogen-activated protein kinase kinase kinase interacting protein (TAK binding protein ¼ TAB 2), as an IEG during hyperosmotic stress in tilapia gill epithelium [26] This gene is transiently ... have been studied in fishes, including their regulation during salinity stress Nevertheless, all studies to date have focused on the role of aquaporins as effector proteins of osmosensory signal...
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Tài liệu Báo cáo khoa học: Osmosensing and signaling in the regulation of mammalian cell function docx
... Thus, integrin-dependent cell volume sensing and signaling integrates into the overall context of insulin signaling Similarly, sensing of glutamine-induced hepatocyte swelling by integrins feeds into ... activation of the protein kinase B survival pathway [31], p53 activation [32], induction of the serum- and glucocorticoidinducible kinase Sgk [33], expression of the heat shock protein Hsp70 [34] ... swelling [12,13], insulin-induced hepatocyte swelling is registrated by the integrin system, leading to a Src-dependent activation of the p38-type MAPK and thereby inhibition of 5800 autophagic...
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Tài liệu Báo cáo khoa học: Dual P2Y12 receptor signaling in thrombin-stimulated platelets – involvement of phosphoinositide 3-kinase b but not c isoform in Ca2+ mobilization and procoagulant activity pdf
... present, the PKA inhibitor H89 further reduced the rate of thrombin generation by another 25%, thus indicating the additional involvement of PKA To assess more directly the role of the P2Y12 ... after the initial Ca2+ peak) resulted in an almost immediate abolition of the remaining part of the Ca2+ signal, which then reached the level as in platelets preincubated with AR-C In the experiments, ... (1993) ADP- and thapsigargin-evoked Ca2+ entry and protein- tyrosine phosphorylation are inhibited by the tyrosine kinase inhibitors genistein and methyl-2,5-dihydroxycinnamate in fura-2-loaded human...
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Tài liệu Báo cáo khoa học: Regulation of connective tissue growth factor (CTGF/CCN2) gene transcription and mRNA stability in smooth muscle cells Involvement of RhoA GTPase and p38 MAP kinase and sensitivity to actin dynamics docx
... termination of the protein synthesis These data add to the growing body of information supporting a preponderant role of p38 in the regulation of gene expression at the level of mRNA stability The ... 30 and then fixed, permeabilized and stained for F-actin with rhodamine-conjugated phalloidin The effects of toxin B and latrunculin B on the actin filaments was examined by preincubating the cells ... determined by treating the cells for 30 with a control vehicle, S1P, anisomycin or FBS and further incubating the cells with actinomycin D (10 lgÆmL)1) for the indicated periods Likewise, the role...
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Bank Savings and Bank Credits in Nigeria: Determinants and Impact on Economic Growth doc
... encouraging Instead of increasing to match the development challenges, there is a clear indication of saving decline in Nigeria, inspite of various policy measures These measures include rural banking ... inflation on saving in the life-cycle model is through its role in determining the real interest rate This is based on the assumption of the absence of real balance effect of inflation and the non-existence ... naira income of the people Increase in per capita income of the people will impact positively on their savings ability (Uremadu, 2006) RIR = Real Interest Rate This is defined as the nominal interest...
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