Modulation of Dendritic Cell Maturation and Function by B Lymphocytes

Modulation of dendritic cell maturation and function by B lymphocytes.

Investigating the signals that regulate the function of dendritic cells (DC), the sentinels of the immune system, is critical to understanding the role of DC in the regulation of immune responses. Accumulating lines of evidence indicate that in addition to innate stimuli and T cell-derived signals, B lymphocytes exert a profound regulatory effect in vitro and in vivo on the Ag-presenting functi...

Dendritic cell maturation by innate lymphocytes

Pathogen recognition by Toll-like receptors (TLRs) on dendritic cells (DCs) leads to DC maturation and the initiation of adaptive immunity. Recent studies have shown that innate lymphocytes--natural killer (NK), natural killer T (NKT), and gammadelta T cells--also trigger DC maturation. This interaction in turn expands and activates innate lymphocytes and initiates adaptive T cell immunity. Her...

Maturation and function of human dendritic cells are regulated by B lymphocytes.

Mature dendritic cells (DCs) are stimulators of T-cell immune response, whereas immature DCs support T-cell tolerance. Murine B cells can inhibit the production of IL-12 by DCs and thereby hinder the inflammatory response. Notwithstanding the importance of this modulation, only a few studies are available in humans. Here, we have developed an in vitro model of cocultures to assess its significa...

Improved Function and Maturation of Dendritic Cells Stimulated by Recombinant pp65 Protein: In vitro Design

Differential modulation of TLR3- and TLR4-mediated dendritic cell maturation and function by progesterone.

The role of progesterone in modulating dendritic cell (DC) function following stimulation of different TLRs is relatively unknown. We compared the ability of progesterone to modulate murine bone marrow-derived DC cytokine production (IL-6 and IL-12) and costimulatory molecule expression (CD40, CD80, and CD86) induced by either TLR3 or TLR4 ligation and determined whether activity was via the pr...