نتایج جستجو برای: cd40
تعداد نتایج: 6685 فیلتر نتایج به سال:
We investigated the influence of dendritic cell (DC) CD40 expression on Th2 and Th1 development by in vivo transfer of Ag-pulsed bone marrow-derived DC generated from wild-type (WT) or CD40(-/-) mice. Contrary to expectation, CD40(-/-) DC primed with Ag that inherently induce a Th2 response (soluble egg Ag from Schistosoma mansoni) failed to induce a Th2 response or any compensatory Th1 respons...
The CD154/CD40 interaction is an important pathway of CD4 T cell help for CD8 T cell responses. In this study, we address the role of CD70, a member of the TNF superfamily and the ligand for the T cell costimulatory receptor CD27, in CD40-mediated priming of CD8 T cells. Using an agonistic anti-CD40 mAb to mimic the CD154/CD40 interaction we demonstrate that the priming of OT-I TCR transgenic o...
Generation or enhancement of immune responses through engagement of costimulatory receptors such as CD40 ligation is an essential component of antitumor immunity and could be exploited in glioma immunotherapy. Nevertheless, the importance of adequate immune stimulation is somewhat overshadowed by the current rush towards blocking immune inhibition using checkpoint-blockade antibodies. Therefore...
BACKGROUND CD40 is a costimulatory molecule that acts as a central mediator of various immune responses, including those involved in the progression of atherosclerosis. Correspondent to its function, CD40 is present not only on many immune cells, such as antigen-presenting cells and T cells, but also on nonimmune cells, such as endothelial cells. METHODS AND RESULTS Ex vivo analyses in mice r...
BACKGROUND CD40 ligand is expressed on platelets and released from them on activation. We investigated the predictive value of soluble CD40 ligand as a marker for clinical outcome and the therapeutic effect of glycoprotein IIb/IIIa receptor inhibition in patients with acute coronary syndromes. METHODS Serum levels of soluble CD40 ligand were measured in 1088 patients with acute coronary syndr...
BACKGROUND CD40-CD154 interactions have proven critical in autoimmunity, with the identification of CD4(lo)CD40(+) T cells (Th40 cells) as harboring an autoaggressive T cell population shedding new insights into those disease processes. Th40 cells are present at contained levels in non-autoimmune individuals but are significantly expanded in autoimmunity. Th40 cells are necessary and sufficient...
To investigate the consequences of CD40 engagement on the neonatal induction of transplantation tolerance, BALB/c mice were injected at birth with (A/J x BALB/c) F1 spleen cells together with activating anti-CD40 mAb and grafted 4 wk later with A/J skin. Whereas A/J allografts were accepted in mice neonatally injected with F1 cells and control Ab, they were acutely rejected in mice injected wit...
The recruitment of tumor necrosis factor receptor-associated factors (TRAFs) 1, 2, 3, 5, and 6 to the CD40 cytoplasmic tail upon CD40 trimerization results in downstream signaling events that ultimately lead to CD40-dependent, thymus-dependent (TD) humoral immune responses. Previously, we have shown signaling through the C-terminal tail of CD40 in the absence of canonical TRAF-binding sites is ...
Müller cells and macrophages/microglia are likely important for the development of diabetic retinopathy; however, the interplay between these cells in this disease is not well understood. An inflammatory process is linked to the onset of experimental diabetic retinopathy. CD40 deficiency impairs this process and prevents diabetic retinopathy. Using mice with CD40 expression restricted to Müller...
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