Natural killer (NK) cells are effector cells of the innate immune system that exert direct cytotoxic functions. Ubiquitously-expressed toll-like receptors (TLRs) have been recognized as one of the major components promoting dendritic cell (DC) maturation, which may induce polarized immune responses beneficial to cancer immunotherapy. TLR-activated NK cells and DCs are prerequisite for robust ac...

Recent studies have shown that although antigens and lectins initiate the activation of T cells, the proliferation of these cells is dependent on a 15,000-dalton glycoprotein designated T cell growth factor (TCGF) 1 (1-9). Accordingly, two antigen-dependent events are essential for the realization of a competent T cell proliferative response: the production of TCGF (5, 7), and the acquisition o...

Abstract Human natural killer (NK) cells are essential for controlling infection, cancer, and fetal development. NK cell functions modulated by interactions between polymorphic inhibitory immunoglobulin-like receptors (KIR) HLA-A, -B, -C ligands expressed on tissue cells. All HLA-C alleles encode a KIR ligand contribute to reproduction immunity. In contrast, only some HLA-A -B they focus By hig...

restraint-induced stress (rs) increases histamine concentration in the brain. there is no previous report regarding the role of histamine receptors in immunomodulatory effect of rs. in the present study the role of brain histamine receptors on reduction of humoral and cellular immune function induced by rs was evaluated. for this purpose male wistar rats (200-250 g) were immunized with sheep re...

endocannabinoid (ecb) system plays a vital role in responses to stress. moreover, ecb and its receptors cause anti-inflammatory, anti-oxidative and neuroprotective effects by modulating neuronal, glial and endothelial cell functions. a number of studies have demonstrated ecb system notably defects in neurotraumatic and neurodegenerative diseases like epilepsy, tbi, alzheimer’s disease and parki...