follicular dendritic cells or dendritic reticulum cells are important components of the immune system essential for antigen presentation. malignancies arising from these cells are uncommon and the first case was reported in 1986. the most common sites of follicular dendritic cell sarcomas are lymph nodes, especially cervical, axillary and mediastinal regions, but extranodal sites including head...

conclusions artemisia absinthium l. extract, at concentrations below 100 µg/ml, can modulate the immune response toward a th1 pattern, by induction of cd40 expression on dcs and cytokine production. also, it can inhibit dcs t cell stimulating activity, at high concentrations. therefore, the traditional use of this plant possibly modulates immune-mediated disorders. however, future studies are n...

background: dendritic cells (dcs) play a central role in the initiation and expansion of t cell mediated immune responses with potential immunotherapy application. the compounds which have the ability to induce immunomodulatory effects on dcs may be employed for the treatment of immunopathologic conditions such as autoimmune diseases. objective: the aim of this study was to investigate the in v...

background: the use of dendritic cells (dcs) as a cellular adjuvant provides a promis-ing approach in immunotherapy of cancer. it has been demonstrated that listeria mono-cytogenes activated dcs pulsed ex vivo with tumor antigens trigger a systemic th1-biased specific immune response and a single dose of this vaccine will cause a consider-able anti tumor immunity. objective: the present study w...

Background: Dendritic cells (DCs) are the most potent stimulators of primary T cell responses and play a key role in immune reactions after stem cell transplantation. Very little is known about the cord blood (CB) dendritic cells and their potential involvement in the low incidence and lower severity of acute graft-versus-host disease after CB transplantation.   Objectives: The aim of this stud...

objective: dendritic cells have a critical role in control and regulation of immune responses. it is believed that these cells can be used for the treatment of many diseases. one of the methods used in immunotherapy is based on generating of tolerogenic dendritic cells through inhibition of expression costimulatory molecules. cd40 is one of the costimulatory molecules, and inhibition of express...

background: the expanse of dendritic cells (dc) differentiation plays an important role in determining immune response. dc-based immunosuppressive drugs have notable side effects in increasing the risk of infectious diseases and cancers. g2013, as a novel anti-inflammatory and immunosuppressive agent, has been tested in experimental model of multiple sclerosis. the aim of this study was to cond...

the wharton’s jelly of the umbilical cord is believed to be a source of mesenchymal stem cells (mscs) which can be therapeutically applied in degenerative diseases. in this study, we investigated the immunomodulatory effect of umbilical cord derived- mesenchymal stem  cells (uc-mscs) and  bone  marrow-derived-mesenchymal stem  cells (bm-mscs) on differentiation, maturation, and endocytosis of m...

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...