variety of positive as well as negative regulatory signals are provided by antigen presenting cell in particular by dendritic cells. in this research, we studied the capacity of dendritic cells to expand antigen-specific t regulatory cells.we also investigated the role of tgf-beta in induction inhibitory functions of dendritic cells in mixed leukocyte reactions. dendritic cells were generated f...

Background: Dendritic cells (DC) are a key regulator of the immune response, and interferon- beta (IFN-β) is considered an immunomodulatory molecule for DC. Objective: The purpose of this study was to evaluate the ability of IFN-β treated DC to induce cytokine secretion by CD4+ T cells. Methods: Dendritic cells were generated from blood monocytes with granulocyte-monocyte colony-stimulating fac...

hla-g is normally expressed on human trophoblast cells. it is a non-classical mhc molecule class i b. the role of hla-g in diabetic type 1 is not known. we investigated the role of ifn-β in induction hla-g expression on the monocyte derived dendritic cells (dc) in diabetes type 1. treatment of dendritic cell with ifn-β in vitro from diabetic patients (n=20) and normal subjects (n=20) resulted t...

background: dendritic cells (dc) induce tumor or pathogen-specific t cell responses in humans. several laboratories have developed culture systems, including maturation factors for human dc from peripheral blood monocytes. we comprehensively compared standard maturation stimulus, an autologous monocyte-conditioned medium (mcm), with heparin for their ability to promote uniformly mature dc that ...

background: dendritic cells (dc) are a key regulator of the immune response, and interferon- beta (ifn-β) is considered an immunomodulatory molecule for dc. objective: the purpose of this study was to evaluate the ability of ifn-β treated dc to induce cytokine secretion by cd4+ t cells. methods: dendritic cells were generated from blood monocytes with granulocyte-monocyte colony-stimulating fac...

during antigen capture and processing, mature dendritic cells (dc) express large amounts of peptide-mhc complexes and accessory molecules on their surface. we investigated the role of ifn-β in induction hla-g expression on the monocyte derived dc and cytokine profile in diabetes type 1. we accomplished secretary pattern and total cytokine production of the th1 cytokine (il-2, γifn) and th2 cyto...

Back ground: Candida albicans is a member of the normal human microflora. C. albicans cell wall is composed of several protein and carbohydrate components which have been shown to play a crucial role in C. albicans interaction with the host immune system. Major components of C. albican cell wall are carbohydrates such as mannans, β glucans and chitins, and proteins that partially modulate the h...

Background: Melanoma is a common and malignant cutaneous tumor, which is responsible for a large proportion of skin cancer deaths. Dendritic cell (DC)-based vaccines have achieved positive results in the treatment of melanoma because of their ability to induce cytotoxic response to facilitate tumor elimination. Objective: To improve the efficacy of dendritic ce...

Background: Dendritic cells (DC) induce tumor or pathogen-specific T cell responses in humans. Several laboratories have developed culture systems, including maturation factors for human DC from peripheral blood monocytes. We comprehensively compared standard maturation stimulus, an autologous monocyte-conditioned medium (MCM), with heparin for their ability to promote uniformly mature DC that ...

back ground: candida albicans is a member of the normal human microflora. c. albicans cell wall is composed of several protein and carbohydrate components which have been shown to play a crucial role in c. albicans interaction with the host immune system. major components of c. albican cell wall are carbohydrates such as mannans, β glucans and chitins, and proteins that partially modulate the h...