نتایج جستجو برای: t helper 9
تعداد نتایج: 1132627 فیلتر نتایج به سال:
Thymosin alpha1 (Talpha1), a naturally occurring thymic peptide, primes dendritic cells (DCs) for antifungal T-helper type 1 resistance through Toll-like receptor 9 (TLR9) signaling. As TLR9 signaling also activates the immuno-suppressive pathway of tryptophan catabolism via indoleamine 2,3-dioxygenase (IDO), we examined Talpha1 for possible induction of DC-dependent regulatory effects. Talpha1...
The pathogenesis of the immunoglobulin deficiency of 20 patients with ataxia telangiectasia was studied using an in vitro immunoglobulin biosynthesis system. 10 patients had no detectable IgA in their serum as assessed by radial diffusion in agar and 3 had a reduced serum IgA concentration. The peripheral blood mononuclear cells of 17 of the patients and 17 normal controls were cultured with po...
T cell differentiation is dictated by a combination of T cell receptor (TCR) interaction with an antigen-bound major histocompatibility complex (MHC), and co-stimulatory molecules signal. The co-stimulatory signal can be positive or negative, and amplifying or diminishing the initial signal. However, the secondary co-stimulatory signal is not obligatory and its necessity is dictated, in part, b...
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