نتایج جستجو برای: tlr4 agonist
تعداد نتایج: 61583 فیلتر نتایج به سال:
Induction of antitumor immunity by dendritic cell (DC)-tumor fusion cells (DC/tumor) can be modulated by their activation status. In this study, to address optimal status of DC/tumor to induce efficient antigen-specific cytotoxic T lymphocytes (CTLs), we have created various types of DC/tumor: 1) un-activated DC/tumor; 2) penicillin-killed Streptococcus pyogenes (OK-432; TLR4 agonist)-activated...
In adaptation to rising stimulant strength, innate monocytes can be dynamically programed to preferentially express either pro- or anti-inflammatory mediators. Such dynamic innate adaptation or programing may bear profound relevance in host health and disease. However, molecular mechanisms that govern innate adaptation to varying strength of stimulants are not well understood. Using lipopolysac...
Replication-defective adenoviral vectors are effective molecular tools for both gene therapy and gene vaccination. Using such vectors one can deliver and express target genes in different epithelial, liver, hematopoietic and immune system cells of animal and human origin. The success of gene therapy and gene vaccination depends on the production intensity of the target protein encoded by the tr...
Toll-like receptors (TLR) 7 and 9 transduce a cellular signal through the MyD88-dependent pathway and induce the production of inflammatory mediators against microbial nucleotide components. The repeated stimulation of TLR4 leads to endotoxin tolerance, but the molecular mechanisms of tolerance induced through the costimulation of individual TLR has not yet been established, although endosomal ...
BACKGROUND Recombinant KSAC and L110f are promising Leishmania vaccine candidates. Both antigens formulated in stable emulsions (SE) with the natural TLR4 agonist MPL® and L110f with the synthetic TLR4 agonist GLA in SE protected BALB/c mice against L. major infection following needle challenge. Considering the virulence of vector-transmitted Leishmania infections, we vaccinated BALB/c mice wit...
Toll-like receptors (TLRs) and Nod-like receptors (NLRs) are known to trigger an innate immune response against microbial infection. Although studies suggest that activation of TLRs modulate the function of mesenchymal stem cells (MSCs), little is known about the role of NLRs on the MSC function. In this study, we investigated whether NOD1 and NOD2 regulate the functions of human umbilical cord...
Burn and toll-like receptors (TLR) are associated with innate immune system activation, but the impact of burn on TLR-induced inflammation responses by circulating leukocytes is unknown. To study this, C57BL/6 mice were subjected to burn (3(rd) degree, 25% TBSA) or sham procedure and 1-7 days later blood was collected. Whole blood cell suspensions were incubated for 24 hr in the presence of zym...
Cystic fibrosis (CF) is the most common lethal inherited disorder and is caused by mutations in the gene encoding the CF transmembrane regulator (CFTR). The CF lung expresses a profound proinflammatory phenotype that appears to be related to a constitutive hypersecretion of interleukin (IL)-8 from airway epithelial cells in response to microbial infection. Since overproduction of IL-8 in CF con...
intra-cerebral hemorrhage (ich) is a particularly severe type of stroke accounting for 10–15 % of all strokes and is associated with a mortality rate of 30–50%. neuroinflammation contributes to ich-induced secondary brain injury and understanding the mechanisms causing neuroinflammation can be helpful to find new treatments of ich. recent studies demonstrated that toll like receptor 2 (tlr2) fo...
زمینه و هدف: شیگلا عامل شیگلوز انسان است و لیپوپلی ساکارید آن به کمک tlr4 شناسایی میشود. tlr4 از خانواده گیرندههای شبه toll بوده و بسیاری از مسیرهای ایمنی با تحریک این گیرندهها راه اندازی میشوند. تحقیقات بسیاری افزایش بیان tlr4 در سلولهای بنیادی مزانشیمی تحت تاثیر لیپوپلی ساکارید را نشان میدهد. هدف مهم این مطالعه شناسایی لیپوپلی ساکارید مناسب سویههای شیگلا از طریق تحریک سیستم ایمنی برای ...
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