... secretion of < /b> IFNβ that inhibited HCMV infection of < /b> HFF Figure and lasts Poly I:C LPS induce IFNβ secretion by Foreskin FibrobPoly I:C and LPS induce IFNβ secretion by Foreskin Fibroblasts Monolayers of < /b> ... medium inhibited HCMV infection by 91%, and the inhibition was reversed by neutralization of < /b> IFNβ (Fig 6) CpG conditioned medium also significantly inhibited HCMV infection (71%) and inhibition was ... secretion of < /b> beta interferon by human fibroblasts J Exp Med 1987, 166(5):1300-1309 Van Damme J, Schaafsma MR, Fibbe WE, Falkenburg JH, Opdenakker G, Billiau A: Simultaneous production of < /b> interleukin...
Ngày tải lên: 20/06/2014, 01:20
... Page of < /b> 10 (page number not for citation purposes) Because IFN-α upregulated B- cell expression of < /b> TLR7 and TLR9, we examined the ability of < /b> IFN-α to enhance B- cell activation by TLR ligands B cells ... and methods Mice and treatment BALB/cJ mice were purchased from The Jackson Laboratory (Bar Harbor, ME, USA) IFNAR2-/- mice on the BALB/c background were provided by Paul J Hertzog (Monash University, ... selected using magnetic beads (Miltenyi Biotec, Bergisch Gladbach, Germany) Cells were more than 95% pure, as assessed by flow cytometry (B2 20+biotin-; data not shown) B cells were cultured in...
Ngày tải lên: 09/08/2014, 14:22
Báo cáo y học: " Nontypeable Haemophilus influenzae induces COX-2 and PGE2 expression in lung epithelial cells via activation of p38 MAPK and NF-kappa B" pps
... binding activity of < /b> NF-< /b> kappa < /b> B induced by NTHi A549 cells were incubated with different concentrations of < /b> NTHi with or without SB203580, and DNA binding activity of < /b> NF-< /b> kappa < /b> B was measured by EMSA ... pre-treatment of < /b> the specific inhibitor of < /b> p38 MAPK SB203580 blocked p38 MAPK signaling activated by NTHi (Fig 4B) Up-regulation of < /b> NF-< /b> kappa < /b> B DNA binding activity after NTHi stimulation Since NF-< /b> kappa < /b> B ... NTHi-induced NF-< /b> kappa < /b> B signaling pathway EMSA analysis showed that NFkappa B translocation and its DNA binding activity were markedly increased by NTHi within 90 mins, and DNA binding activity of < /b> NF-< /b> kappa...
Ngày tải lên: 12/08/2014, 15:21
Báo cáo khoa học: Human lactoferrin activates NF-jB through the Toll-like receptor 4 pathway while it interferes with the lipopolysaccharide-stimulated TLR4 signaling potx
... the family of < /b> NF-< /b> jB proteins comprises five members: RelA ⁄ p65, RelB, c-Rel, p50 ⁄ NF-< /b> jB1 and p52 ⁄ NF-< /b> jB2 Homodimers or heterodimers of < /b> these proteins are active forms of < /b> NF-< /b> jB FEBS Journal ... of < /b> note that the magnitude of < /b> NF-< /b> jB activation induced by a pre-PMB–agarose fraction of < /b> hLF (500 lgÆmL)1), which contained 13 EUÆmL)1 of < /b> endotoxin, was comparable to that induced by a postPMB–agarose ... observation that NF-< /b> jB activation induced by hLF is ‘endo -b- galactosidase sensitive’, whereas activation induced by LPS is ‘endo -b- galactosidase resistant’, enables us to rule out the possibility...
Ngày tải lên: 06/03/2014, 11:20
Báo cáo khoa học: Phosphorylation of NF-jB proteins by cyclic GMP-dependent kinase A noncanonical pathway to NF-jB activation potx
... incorporation of < /b> phosphate into p49 or p50 depends on PKG, is enhanced by cGMP, can be competed by a PKG substrate peptide but not by a control peptide, and is inhibitable by a cGMP analog with inhibition ... without being phosphorylated [41] In contrast, in vitro binding of < /b> recombinant p50 to the NF-< /b> jB consensus sequence or to the nonconsensus NF-< /b> jB-C/EBP sequence was increased by PKG (Fig 7A ,B) The binding ... transfectants of < /b> p50 or p50 plus PKG was confirmed by supershift (Fig 7D) The subcellular localization of < /b> NF-< /b> jB subunits is not affected by phosphorylation with PKG NF-< /b> jB is an inducible transcription...
Ngày tải lên: 08/03/2014, 02:20
Báo cáo y học: "Differential Constitutive and Cytokine-Modulated Expression of Human Toll-like Receptors in Primary Neutrophils, Monocytes, and Macrophages" docx
... recognition of < /b> bacteria (Reviewed in [15]) TLR1 and TLR6 contribute to discrimination of < /b> bacterial lipopeptides by functionally combining with TLR2.[26] TLR2 has been associated with recognition of < /b> cell ... to LPS, as measured by NF-< /b> B DNA binding activity and cytokine production (e.g., TNF-α).[39] Neutrophils had increased protein and mRNA expression of < /b> TLR2 and TLR9 after incubation with GM-CSF.[38] ... according to a protocol approved in advance by the Human Subjects Committee of < /b> the University of < /b> Washington Investigational Review Board Monocytes were isolated by negative immunoselection with RosetteSep...
Ngày tải lên: 08/08/2014, 16:23
Báo cáo y học: "No evidence of major effects in several Toll-like receptor gene polymorphisms in rheumatoid arthritis" pdf
... Hardy–Weinberg equilibrium Association studies in the overall population None of < /b> the alleles of < /b> any of < /b> the 10 SNPs showed disequilibrium of < /b> transmission to RA patients by the TDT (Table 2) Neither ... but at position -851 of < /b> the gene (+1 being at the beginning of < /b> exon instead of < /b> exon 2) The primers used for PCR amplification of < /b> SNP1 and SNP2 PCR are presented in Table PCR conditions will be ... genomics) but at position +3483 of < /b> the gene (+1 being at the beginning of < /b> exon instead of < /b> exon 2) SNP2 is a C/T polymorphism that constitutes a noncoding mutation, probably at position -1486 of < /b> the...
Ngày tải lên: 09/08/2014, 01:22
Báo cáo y học: "No evidence of major effects in several Toll-like receptor gene polymorphisms in rheumatoid arthritis" ppt
... Hardy–Weinberg equilibrium Association studies in the overall population None of < /b> the alleles of < /b> any of < /b> the 10 SNPs showed disequilibrium of < /b> transmission to RA patients by the TDT (Table 2) Neither ... but at position -851 of < /b> the gene (+1 being at the beginning of < /b> exon instead of < /b> exon 2) The primers used for PCR amplification of < /b> SNP1 and SNP2 PCR are presented in Table PCR conditions will be ... genomics) but at position +3483 of < /b> the gene (+1 being at the beginning of < /b> exon instead of < /b> exon 2) SNP2 is a C/T polymorphism that constitutes a noncoding mutation, probably at position -1486 of < /b> the...
Ngày tải lên: 09/08/2014, 13:22
Báo cáo y học: "The role of toll-like receptors in acute and chronic lung inflammation" pdf
... Microbiol 2008, 54(1):37-44 Urban TA, Griffith A, Torok AM, Smolkin ME, Burns JL, Goldberg JB: Contribution of < /b> Burkholderia cenocepacia flagella to infectivity and inflammation Infect Immun 2004, 72(9):5126-5134 ... recognition of < /b> flagellin, P aeruginosa LPS is detected by TLR4 and the P aeruginosa ExoS toxin is recognized by both TLR2 and TLR4 [11,115-117] Loss of < /b> a single TLR does not confer susceptibility ... inhibition during M pneumoniae infection, thereby decreasing the production of < /b> IL-6 and other Th1 proinflammatory mediators that are required for bacterial clearance [199] Antibiotic treatment of...
Ngày tải lên: 11/08/2014, 03:20
Báo cáo y học: "Early Characterization of Toll-like receptors in primary lung epithelial cells: strong impact of the TLR3 ligand poly(I:C) on the regulation of Toll-like receptors, adaptor proteins and inflammatory response" ppt
... and permeabilized by incubation with BD Cytofix/Cytoperm solution (BD Bioscience) The anti-TLR1 (GD2.F4) mAb, anti-TLR2 Page of < /b> 15 (page number not for citation purposes) Journal of < /b> Inflammation ... has been demonstrated by the increased susceptibility of < /b> TLR knockout mice towards viral or bacterial infections For example, TLR2 deficient mice have been shown to be highly susceptible to infection ... pulmonary inflammation, increased bacterial load and viral infections of < /b> the lung lead to severe exacerbations of < /b> diseases like COPD [3,4] or asthma [5] most probably due to a biased release of < /b> inflammatory...
Ngày tải lên: 11/08/2014, 08:21
Báo cáo y học: " Differential expression of Toll-like receptors on human alveolar macrophages and autologous peripheral monocytes" pdf
... anti-inflammatory activity of < /b> IL-10 either by altering its production or by inhibiting the cellular responsiveness to the cytokine [43] M.tb DNA (TLR9) induced similar levels of < /b> TNF-a, IL- 1b and ... antibody positive in 90%, 80% and 99.9%, respectively None of < /b> the antibodies showed nonspecific crossreactive binding Preparation of < /b> M.tb DNA M.tb DNA was prepared as described previously by our ... in 5% CO2 Preparation of < /b> bronchoalveolar cells Bronchoalveolar cells were obtained by bronchoalveolar lavage as described previously [24] Briefly, after local anesthesia of < /b> the upper airways with...
Ngày tải lên: 12/08/2014, 14:20
Báo cáo y học: "Trapped in a vicious loop: Toll-like receptors sustain the spontaneous cytokine production by rheumatoid synoviu" doc
... proinflammatory cytokines and matrix metalloproteinases by RA synovial membrane cells can also be inhibited by overexpression of < /b> the dominant-negative form of < /b> MyD88 adaptor-like (Mal), an adaptor molecule ... signaling and recently reported not to be essential for TLR2 signaling [10,11] Furthermore, TNFα production by RA synovial membrane cells could be blocked by imiquimod and the serotonin receptor ... Roelofs MF, Radstake TR, Heuvelmans-Jacobs M, Akira S, Nicklin MJ, Ribeiro-Dias F, van den Berg WB: Stimulation of < /b> TLR2 and TLR4 differentially skews the balance of < /b> T cells in a mouse model of...
Ngày tải lên: 12/08/2014, 15:22
Báo cáo y học: " Toll-like receptors in cellular subsets of human tonsil T cells: altered expression during recurrent tonsillitis" ppsx
... (rabbit polyclonal) and TLR9 (26C593) from Acris antibodies, as well as rabbit pAbs against TLR2 and TLR3 from AMS Biotechnology Subsequently, HRP-labeled goat anti-mouse or goat anti-rabbit ... pattern of < /b> TLR1-TLR10 in cellular subsets of < /b> human tonsil T cells at both mRNA and protein level The ability of < /b> TLRs to recognize PAMPs and to activate pro-inflammatory mechanisms might be of < /b> great ... known to be activated by structures on Gram-positive bacteria such as lipoproteins and peptidoglycan [16], but the receptor has also been described to recognize a soluble factor from group B streptococci...
Ngày tải lên: 12/08/2014, 16:20
Báo cáo y học: " Science review: Key inflammatory and stress pathways in critical illness – the central role of the Toll-like receptors" ppsx
... factor- B (NF-< /b> B) , a central transcriptional activator of < /b> many proinflammatory genes [18,26,28] The p75 TNF receptor signals by way of < /b> TNF receptor associated factor (TRAF) family members [29], ... and are connected by the cytokine TNF (which does not exist in flies) Each pathway has the effect of < /b> activating nuclear factor- B (NF-< /b> B) , although the second (TNF receptor) limb of < /b> the pathway ... activation of < /b> the transforming growth factor-β activated kinase (TAK)1, and then to the phosphorylation of < /b> I B, with its disassociation from NF-< /b> B NF-< /b> B activates many of < /b> the genes that are induced by...
Ngày tải lên: 12/08/2014, 19:21
The role of downstream of kinase (DOK) 3 in toll like receptor signalling
... cells ABIN1 A20-binding inhibitor of < /b> NF< /b> B BCR B cell receptor BLNK B cell linker protein BTK Bruton‟s tyrosine kinase CD cluster of < /b> differentiation DBD DNA binding domain Dok Downstream of < /b> kinase ... pathways to activate NF< /b> B NF< /b> B transcription factors are initially inactive and retained in the cytoplasm of < /b> cells by the I B subunits Upon receptor activation, the I B subunits are phosphorylated ... make I also would like to thank my brother for looking after them in my absence I am truly indebted by all of < /b> their love and support iv TABLE OF < /b> CONTENTS TABLE OF < /b> CONTENTS DECLARATION ...
Ngày tải lên: 09/09/2015, 10:16
báo cáo hóa học: " Toll-like receptors in cerebral ischemic inflammatory injury" pdf
... antiHMGB1 monoclonal antibody (mAb) remarkably ameliorated brain infarction induced by a 2-hour occlusion of < /b> the middle cerebral artery in rats, even when the mAb was administered after the start of < /b> ... anti-HMGB1 antibody inhibited the activation of < /b> microglia, the expression of < /b> TNF-a, and iNOS In contrast, intracerebroventricular injection of < /b> HMGB1 increased the severity of < /b> infarction and neuroinflammation ... would shift from NF-< /b> B induction to IRF3 induction Suppression of < /b> NF-< /b> B induction would be expected to protect the brain, as mice lacking the p50 subunit of < /b> NF-< /b> B suffer less cerebral ischemic damage...
Ngày tải lên: 19/06/2014, 22:20
Báo cáo y học: "Toll-like receptors and innate immune responses in systemic lupus" docx
... patients exhibit highly increased expression of < /b> a wide variety of < /b> genes that are known to be upregulated by IFNs This effect appears to be mediated by IFN-α subtypes secreted prominently by pDCs A ... tightly bound by HMGB1 [52] More recent studies suggest that HMGB1 binding to DNA enhances the interaction of < /b> the HMGB1/DNA complex to both TLR9 and RAGE, the HMGB1 receptor [54,55] HMGB1 also ... in murine models of < /b> lupus The activity of < /b> these ICs appears largely to be mediated by intracellular, nucleic acid binding TLRs, stimulating B- cell maturation and pDC secretion of < /b> IFN-α These findings...
Ngày tải lên: 09/08/2014, 10:21
Báo cáo y học: "Toll-like receptors and NOD-like receptors in rheumatic diseases" pdf
... joint tissue by spirochetes Immune responses of < /b> the host toward B burgdorferi are predominantly mediated by the recognition of < /b> proteins modified with tripalmitoyl-S-glyceryl-cysteine by TLR2 [31] ... Knockdown of < /b> AIM2 using shRNA blocks recognition of < /b> cytoplasmic dsDNA in human macrophages [51-53] SLE is characterised by elevated levels of < /b> interferon and by the presence of < /b> DNA:antibody complexes ... the tick-borne spirochete Borrelia burgdorferi A subacute inflammatory arthritis develops in 60% of < /b> individuals not treated at the time of < /b> the tick bite, and is associated with invasion of < /b> the...
Ngày tải lên: 09/08/2014, 14:21
Báo cáo y học: " Gut flora enhance bacterial clearance in lung through toll-like receptors 4" docx
... TLR4 and depletion of < /b> TLR4 decreases the bacterial killing activity of < /b> alveolar macrophages NF-< /b> B family members control transcriptional activity of < /b> various promoters of < /b> proinflammatory cytokines, ... system (Bio-Rad) The IL- 1b was identified by goat polyclonal antibodies (Santa Cruz Biotechnology Inc., Santa Cruz, CA, USA) The membranes were incubated with the secondary antibodies (Biotinylated ... further corroborates the important role that commensal microflora play in inducing NF-< /b> B signaling in the lung Nuclear factor kappa < /b> B (NF-< /b> B) regulates the transcription of < /b> a wide array of < /b> gene products...
Ngày tải lên: 10/08/2014, 10:20